134results about "Reaming tools" patented technology

A stop for use with an electric drill bit, the stop having at least one threaded sleeve for positioning the stop relative to a surface into which the drill bit will extend. The stop may have both an inner and an outer sleeve. The sleeves are mounted coaxially, one inside the other about the drill bit. One of the sleeves, preferably the inner sleeve, provides coarse adjustment of the position of the shoulder relative to the tip of the bit, while the other, preferably the outer sleeve, provides fine adjustment of the position of the shoulder relative to the top of the bit.

The application discloses a cutter for machining a tapered hole and relates to the technical field of cutters. The cutter for machining a tapered hole is characterized by the following: an inner lining assembly is arranged in the cutter body; when the cutter body starts to perform a hole opening operation on a hole opening plane, the cutter body will vibrate; the rubber sleeve arranged in the cutter body can buffer and absorb the vibration and has a protection effect, thereby preventing resonance; the abutting piece and the connecting column arranged in the cutter body can improve the structural strength of the cutter body and the supporting effect from the inside to the outside, thereby preventing the cutter body from being bent or broken during hole opening; the service life of the cutter body is prolonged; the cutter body is matched with the cutting edge; the cutter can open a tapered hole with a certain precision; the generated metal scraps can be automatically discharged through the slag discharge groove; the cutter can prevent the problem of continuous rotation and biting of the cutter in the tapered hole; and the cutter has an auxiliary effect on improving the hole opening precision.

Tool (5) for machining a workpiece (4), comprising: - a tool shank (12) rotatable about a rotary axis (10), - a cutting device (13) arranged on the tool shank (12) with: - at least one pre-cutting element (14) and - at least one post-cutting element (15),- a first slide unit (8) for displacing the at least one pre-cutting element (14) relative to the tool shank (12) with -- a first output body (25) connected to the at least one pre-cutting element (14) and -- a first drive body (23) interacting with the respective first output body (25) via a first drive surface (24) and - a second slide unit (9) displaceable relative to the first slide unit (8) for displacing the at least one re-cutting element (15) relative to the tool shank (12) with -- a second output body (29) connected to the at least one re-cutting element (15) and -- a second drive body (27) interacting with the respective second output body (29) via a second drive surface (28), wherein the first drive surface (24) and the second drive surface (28) overlap each other in an orthogonal projection onto a transverse plane to the axis of rotation (10), thereby characterizedthat a maximum feed path (s1, s2) of at least two of the output bodies (25, 29) is different.

The invention provides a dual-V-shaped clamping multi-specification adaptive modular cutter with chip removal and cooling functions, and relates to the technical field of hole machining cutters, the dual-V-shaped clamping multi-specification adaptive modular cutter comprises a cutter bar and a cutting head, the cutting head is provided with a connecting hole, and a positioning rod is arranged at the lower end of the cutting head; the top of the cutter bar comprises a V-shaped end, the inner side of the V-shaped end comprises two V-shaped faces, and the V-shaped end penetrates through the connecting hole through a locking bolt to achieve fixation of the cutter bar and the cutting head. A positioning hole is formed in the bottom of the V end, a pre-tightening assembly matched with the positioning hole is arranged at the lower end of the positioning rod, five-face positioning of the cutting head is achieved through matching of the V end on the cutter bar and the supporting face, in the installation process, by installing the pre-tightening assembly in advance, the cutting head can be conveniently installed in the V end, pre-tightening force can be provided, and therefore the cutting head can be installed conveniently. And the cutting head and the V end can be conveniently fixed by the locking bolt.

Reaming tool for reaming very precise bores, especially in gray and ductile iron, comprising a clamping element adapted for clamping in the clamping devices of machine tools, and a cutting element according to the invention, on the circumferential part of which at least two cylindrical longitudinal support surfaces with an angular distance of 60° to 160° are formed, and on the remaining circumference of the cutting element at least three cutting teeth with longitudinal cutting edges and face cutting edges are formed, wherein a cylindrical longitudinal support surface is formed behind the first cutting tooth in the working direction of rotation and the other cylindrical longitudinal support surface is formed in front of the last cutting tooth in the working direction of rotation, characterized in that at the first cutting tooth (4) the distance (L1) of the intersection point (P1), i.e. the longitudinal cutting edge (9) and the inclined cutting edge (10), from the face plane (π) is smallest and at the last cutting tooth (4'') the distance (L1'') of the intersection point (P1'')that is, the longitudinal cutting edge (9'') and the inclined cutting edge (10'') are greatest from the face plane (π), and at least one cutting tooth (4') is formed between the cutting teeth (4) and (4'') with a distance (L1') of the intersection point (P1'), i.e., the longitudinal cutting edge (9') and the inclined cutting edge (10'), from the face plane (π), wherein, for individual cutting teeth (4') and (4), the distances (L1') and (L1) of the intersection points (P1') and (P1) from the face plane (π) decrease from the distance (L1'') in the working direction of rotation, and the distances (L2) and (L2') between the face plane (π) and the intersection points (P2) and (P2'), i.e., the cylindrical longitudinal support surfaces (6) and (6') and the lead-in surfaces (5) and (5'), decrease by at least 0.2 mm as the distance (L1'') between the frontal plane (π) and the intersection point (P1'') are larger.

The invention relates to a drilling method, in particular for a turbine shaft of an aircraft turbine engine, which method is implemented by a drilling machine (100) including a drill rod (8), a cutting tool (4) mounted on a free end of the drill rod, and an anti-vibration ring (10) positioned on the drill rod behind the cutting tool, the anti-vibration ring including a sleeve including a bore extending longitudinally coaxially between a front end and a rear end of the sleeve, as well as a first absorption means positioned in the bore and a second absorption means positioned on an outer circumference of the sleeve, the method including steps of: a) placing the anti-vibration ring on the drill rod near a free end of the drill rod; b) securing the cutting tool to the free end of the drill rod; c) drilling a bore to be made in the turbine shaft by pushing, during which the anti-vibration ring is inserted into an inlet (21) of the bore to be made.

The drilling and reaming integrated cutter for the engine cylinder block relates to the technical field of engine cylinder block machining and comprises a drill bit and a reinforcing assembly, a cutter containing groove is formed in the side edge of the drill bit, a reamer is arranged in the cutter containing groove, a fixing hole is formed in the side edge of the reamer, an inserting rod is installed at the lower end of the reamer, and the inserting rod is connected with the reinforcing assembly. The reinforcing assembly used for installation and reinforcement is arranged at the lower end of the interior of the cutter containing groove and comprises a reinforcing plate, a limiting hole, a spring and an inner groove, the limiting hole is formed in the middle of the upper end of the reinforcing plate, the spring is installed at the lower end of the reinforcing plate, and the inner groove is formed in the outer portion of the spring. According to the drilling and reaming integrated cutter for the engine cylinder body, the cutter containing groove is used for positioning and rapid installation of the reamer, after the cutting edge of the detachable and replaceable reamer is abraded, the cutter can be continuously used by replacing the blade, the grinding and replacing cost of the cutter is reduced, the service life of the cutter is prolonged, and the machining efficiency of the cutter is improved.

The utility model relates to the technical field of high-precision reamers, and discloses a fine-adjustable reamer which comprises a reamer handle, an adjusting fixing block is fixedly connected to the top of the reamer handle, and a T-shaped sliding groove is formed in the top of the adjusting fixing block. The limiting ring is rotated through the operation groove, so that the limiting ring rotates along the limiting groove, the limiting ring drives the hexagonal adjusting block, the hexagonal adjusting block rotates the threaded rod through the hexagonal avoiding groove, and the threaded rod rotates and descends towards the interior of the reamer handle along the adjusting fixing block; the inner wall of the threaded rod slides downwards along the outer wall of the adjusting block through the hexagonal receding groove, meanwhile, the threaded rod pulls down the adjusting block, so that the adjusting block extrudes the reamer outwards through the inclined face, the reamer drives the T-shaped sliding block to expand outwards along the T-shaped sliding groove, the size of the reamer after abrasion is made up, and the flexibility of the reamer is improved. And the scrapping probability of the reamer is reduced, so that higher machining precision and flexibility are ensured.

A multi-part modular tool rotatable about a longitudinal tool axis (A), comprising: a machining head; a first holding element comprising a body elongated along the longitudinal axis (A) of the tool, in which a passage extends along the longitudinal axis (A) of the tool; a second holding element which can extend in the passage of the first holding element; wherein the machining head can be connected to the second holding element in such a way that the machining head is fixed firmly to the first holding element at least in the axial direction (A) and / or in the radial direction (R), and wherein the passage of the first holding element and the second holding element are adapted to one another such that during a connection process in which the machining head is connected to the second holding element, the second holding element is movable relative to the first holding element.

To provide a technology that safely and reliably removes chips and other residues from machine tools while suppressing a decrease in work efficiency. [Solution] The fluid ejection tool 50 is attached to the spindle 3 of a machining center 1A capable of ejecting fluids such as coolant liquid in a center-through manner. The fluid ejection tool is provided on the tip end 54 side and has a lateral through-hole 63 that penetrates to the outside from the inner circumferential surface 60b of the internal flow path 60 and ejects the fluid that has passed through the internal flow path to the outside. The tip end is provided with a tip through-hole 61 that penetrates to the outside along the tool axis. The lateral through-hole is inclined so that the outer opening 63d is closer to the base than the inner opening 63c. The lateral through-hole is provided at a position that is a first distance from the tip and at a position that is a second distance, and both the first distance and the second distance are less than or equal to 1 / 4 of the length of the part of the tool that protrudes from the tool holder along the tool axis direction.

The present invention relates to a drill bit and a method of manufacturing a perforated article. In the case where the rigidity of the main shaft of a perforating machine is sufficient, it goes without saying, but even in the case where perforation is performed using a hand-held tool rotation device or the rigidity of the main shaft of the perforating machine is low, a workpiece composed of a composite material or a metal or the like can be perforated with high accuracy. The drill bit of the embodiment has a first cutting edge formed on the leading end side in such a manner that the leading end angle is continuously or discontinuously reduced from the leading end side to the trailing end side, and on the other hand, the clearance angle is continuously or discontinuously reduced from the leading end side to the trailing end side, and is used to perforate a workpiece to form a pilot hole; a second cutting edge formed by being positioned away from the first cutting edge toward the trailing end side, and used to perform finishing of the pilot hole, and having a clearance angle at the maximum diameter position; and a vibration-damping portion formed between the first cutting edge and the second cutting edge, and reducing vibration of the second cutting edge by being inserted into the pilot hole processed by the first cutting edge.

An reaming system can be connectable to a robotic surgical system including an end effector of a robotic arm. The reaming system can include a reaming guide and a reamer. The reaming guide can include a body releasably couplable to the end effector at a proximal portion of the body and a housing located at a distal portion of the body. The reamer can be operable to ream bone. The reamer can include a support releasably couplable to the housing to secure the reamer to the reaming guide and the end effector. The reamer can include a cutting head connected to the support, the cutting head rotatable with respect to the housing when the support is coupled to the housing.

This rotary cutting tool comprises an outer peripheral cutting edge, a front cutting edge, and a rake face to which a groove has been provided. With respect to the front cutting edge, the outer peripheral cutting edge is positioned in a first direction that is parallel to an axis and goes from a front end of the rotary cutting tool toward a rear end of the rotary cutting tool. The rake face comprises a first rake face portion linked to the outer peripheral cutting edge. The groove comprises a first side wall surface linked to the first rake face portion. A ridge line between the first side wall surface and the first rake face portion is taken to be a first ridge line. In a cross section that is perpendicular to the axis and intersects the groove and that is viewed in the first direction, a virtual line that is perpendicular to the first rake face portion and passes through the first ridge line is taken to be a first virtual line. In the cross section, a tilt angle of the first side wall surface with respect to the first virtual line is 35° to 60°.

The invention discloses an automatic drilling and reaming machine with an aperture fine adjustment function, and relates to the technical field of drilling and reaming machine tools, the automatic drilling and reaming machine comprises a fine adjustment reamer and a hook rod, the fine adjustment reamer is installed on an automatic clamp, the fine adjustment reamer comprises a reamer body, a fine adjustment mechanism and a replaceable reamer blade, the fine adjustment mechanism is arranged in the reamer body, and the reamer blade is arranged on the hook rod. The fine adjustment mechanism is in circuit connection with the main machine control box, the reamer blade is installed on the fine adjustment mechanism, the fine adjustment mechanism conducts fine adjustment on the position of the reamer blade, and the hook rod is rotatably installed below the main machine control box and presses the fine adjustment mechanism. The fine adjustment mechanism composed of the double-thread screw, the upper sliding block, the lower sliding block, the push rotating ring, the blade frame and the like is arranged, hook rod locking and gear transmission structures are combined, accurate and synchronous adjustment of the radial position of the reamer blade is achieved, the precision and consistency of hole diameter machining are effectively improved, and the high-precision reaming process requirement is met.

The utility model discloses a large unequally-divided spiral reamer which comprises a spiral reamer handle and a spiral reamer body arranged on the side face of the tail end of the spiral reamer handle. A cutting taper angle is arranged at the tail end of the spiral reamer body, the indexing of the main chip flutes is sequentially 70 degrees and 120 degrees alternately, the back width ratio of the spiral reamer body is 150 degrees and 120 degrees alternately, the cutting taper angle is 0.5 * 30 degrees, the spiral reamer body is slotted through unequal indexing, the angle, the back width and the cutting edge of each edge are different, and the angle, the back width and the cutting edge of each edge are different. According to the improved spiral reamer, grooving is conducted through unequal indexing, the angles, the back widths and the cutting edges of all the edges are different, and therefore the contact frequency and the contact time of all the cutting edges and the surface of a workpiece are different in the machining process, and the vibration suppression effect is achieved. Through the improvement, part of components can be directly replaced when the spiral reamer is damaged.

The compound tool for machining the threaded hole comprises a drill tip, a tool body front section, a tool body middle section, a tool body rear section and a tool body handle, at least two spiral cutting edges used for drilling holes are evenly distributed in the circumferential direction of the tool body front section, and two spiral chip grooves are distributed between the two spiral cutting edges. The spiral chip groove spirally extends to the cutter body middle section, the cutter body rear section is connected to the cutter body handle, the spiral cutting edge spirally extends to the cutter body middle section, the spiral cutting edge located in the cutter body middle section is provided with a spiral reaming edge used for reaming, and the cutter body rear section is provided with a threaded edge used for tapping. According to the composite tool for machining the threaded hole, machining of the threaded hole can be achieved only through one tool, and the problem that the machining precision of the threaded hole is reduced due to positioning errors caused by tool changing of multiple tools is solved. And meanwhile, the machining time can also be shortened, and the machining efficiency of the threaded hole is improved.

The utility model discloses a kind of machine with spiral blade reamer.The utility model includes the handle, clearance and tool body sequentially coaxially connected arrangement from tool tail to tool head;One end of handle is fixedly installed with external numerical control machine tool, and at least four tool ridges are provided on the outer circumferential surface of tool body, and each tool ridge is sequentially arranged from the tail end of tool head of tool body to clearance.The utility model can improve the feed amount in the reamer processing process, improve the chip removal effect, and also help to improve the smoothness of the processing hole wall and slow down the reamer wear speed.

The invention relates to a reamer and to a reamer and floating head assembly. The task of the invention is to provide a reamer that will provide for high machining accuracy, will be adjustable for machining workpieces having different diameters and will allow for quick restoration or replacement of blades and guides. A reamer (1; 101) comprises a head (2; 102), at least three guides (3; 103), each consisting of a guide part (3 a; 103 a), movably arranged in the head, and a pointed part (3b; 103b), the guides being arranged at an angle φ with respect to the central axis of the head, and wherein part of the surface of the pointed part of the respective guide, which is intended to come in contact with the workpiece, is arranged at the same angle φ with respect to the central axis of the respective guide so that part of the surface of the pointed part of the respective guide, which is intended to come in contact with the workpiece, is arranged parallel to the central axis of the head, a blade holder (4; 104), an adjusting screw (5; 105) of the guides, elements (3c, 5a, 5b, 11, 12; 103c, 111) for transferring the translational movement of the adjusting screw (5; 105) of the guides to the guides and the blade holder, and a blade (6; 106) for machining the workpiece.

Reduce the height of the reamer chuck device along the axis of rotation. [Solution] The reamer chuck 2, which connects a reamer and a shaft for rotationally driving the reamer, comprises a substantially cylindrical main body 21, a shaft insertion hole 22 recessed in the center of the shaft mounting surface 21a of the main body 21, a reamer engaging portion 23 protruding from the reamer mounting surface 21b of the main body 21, and a holding portion 24 that clamps the engaged portion of the reamer between itself and the reamer engaging portion 23. The holding portion 24 has a ball that protrudes and retracts from the reamer mounting surface 21b, and a spring that biases the ball in the protruding direction, and the spring is housed in the main body 21 at a position adjacent to the shaft insertion hole 22. With this configuration, since the spring and the shaft insertion hole 22 are not aligned vertically along the rotation axis Ax, the height of the reamer chuck 2 along the rotation axis Ax can be reduced.

The invention discloses a cutter for machining a taper hole, and relates to the technical field of cutters. According to the tool for machining the taper hole, the lining assembly is installed in the tool body, when the tool body begins to conduct trepanning work on a trepanning plane, the tool body can generate vibration, the generated vibration can be buffered, damped and protected through the rubber sleeve arranged in the tool body, and the resonance phenomenon is prevented; meanwhile, an abutting piece and a connecting column are arranged in the cutter body, the structural strength and the inner supporting effect of the cutter body can be improved from inside to outside, the problems of bending, breakage and the like of the cutter body during tapping are prevented, the progressive effect of prolonging the service life of the cutter body is achieved, and meanwhile the cutting edge is matched with the cutter body, so that the service life of the cutter body is prolonged. A taper hole with certain precision can be formed, generated metal chippings can be automatically removed through the slag discharging groove, the scraping problems such as cutter gnawing caused by continuous rotation in the taper hole are prevented, and the auxiliary effect on improvement of the tapping precision is achieved.

The utility model belongs to the technical field of reamers, particularly relates to a double-inner-cooling-hole hard alloy reamer used for cutting, and aims to solve the problems that an existing single-inner-cooling-hole reamer is limited in cooling effect and difficult to meet some high-precision and high-efficiency machining, the following scheme is provided: the double-inner-cooling-hole hard alloy reamer comprises a reamer body, a reamer holder and a mounting head, the double-channel structure is adopted, the flow of a cooling medium is greatly increased, the heat dissipation area is greatly increased, heat in the cutter body can be taken away more quickly, the cooling effect is more remarkable than that of a single channel, the first inner cooling branch channel, the inner cooling branch pipe and the second inner cooling branch channel extend to the outer side of the cutter body, and the cooling effect is better. The cooling medium can be directly guided to cutting areas such as the cutting edges, especially near the first cutting edge and the second cutting edge, the parts generate most heat in the cutting process, targeted efficient cooling can be achieved, tool abrasion can be reduced, the service life of the cutting edges can be prolonged, the cutting performance of the cutting edges can be improved, and the requirements for high-precision and high-efficiency machining are met.

The anti-vibration device (10) for the machining of a shaft (30) comprises a first fixed ring intended to be kept inside a shaft (30) by means of a shoulder (17), said anti-vibration device comprising: • at least one first external groove (12) and at least one first external seal (121) for forming at least one contact with the internal surface of the shaft (30); • at least one first internal circumferential groove (11) and at least one first internal seal (110) for forming at least one contact with the external surface of the bar (30); • an internal circumferential cavity (18) that is able to cause the circulation of a fluid (122) arriving through a first duct (14, 16) and leaving through a second duct (13, 15), said first duct (14, 16) and second duct (13, 15) passing through the radial thickness of the anti-vibration device (10), the internal circumferential cavity (18) making it possible to realize a vibration-damping function when a fluid (122) passes through it.

What is provided is a modular cutting tool (1; 40) with a base body (2) extending along a tool axis and a tool head (3) connected via a positive coupling to the base body (2), wherein the positive coupling is formed from front toothings (4), which are engaged with one another, on the base body (2) and tool head (3), which each have a plurality of radially running teeth (5), which are distributed equidistantly around the tool axis. For each front toothing (4) the tip surfaces (7) of the teeth (5) lie on a virtual inner conical surface in the tool head (3) or base body (2) with the tool axis as cone axis, and the tip surfaces (7) of the teeth (5) are rounded concavely.

This utility model discloses a PCD diamond reamer with dual guide edges, characterized by comprising: a metal shank, with a shank connecting portion and a guide portion connected at the front end of the shank; the shank connecting portion and the guide portion are connected by a guide bevel; a first guide edge mounting portion and a second guide edge mounting portion are provided on the guide end of the guide portion; a first diamond guide edge is provided at a first guide surface of the first guide edge mounting portion; a first chip removal groove is formed on the front side of the first diamond guide edge; a second diamond guide edge is provided at a second guide surface of the second guide edge mounting portion; a second chip removal groove is formed on the front side of the second diamond guide edge; the first diamond guide edge and the second diamond guide edge are axially symmetrical about the central axis of the PCD diamond reamer. This utility model, through its targeted dual guide edge design, enables one-time forming of hole-shaped structures. The processing quality is stable and the efficiency is high.

The utility model discloses a kind of slotless reamer and processing tool, slotless reamer includes tool bit, the outside wall of tool bit has multiple plane structures, multiple plane structures are arranged along the circumference of tool bit, and cutting edge is formed between every two adjacent plane structures.This slotless reamer of the utility model is used, tool bit is inserted into hole, when slotless reamer rotates, cutting edge can process the hole wall of hole, to reach the purpose of hole expansion or hole repair, wherein, the debris produced by slotless reamer cutting can be temporarily stored in the area between plane structure and the hole wall of hole, debris is not easy to block this area, can reduce the risk of hole wall being scratched;In addition, the slotless reamer of the utility model does not need to set the slot structure on straight slot reamer or spiral slot reamer, and the overall structural strength is higher, the risk of vibration or chipping during use can be reduced;In addition, the slotless reamer of the utility model is simple to manufacture, and small-diameter reamer manufacturing can be realized.

The utility model relates to the technical field of reamer production and machining, and discloses a flexible hole machining reamer structure which comprises a first reamer rod, a second reamer rod fixedly connected to the bottom of the first reamer rod, a reamer head fixedly connected to the bottom of the second reamer rod, a shell arranged on the top of the first reamer rod, a first groove formed in the front side of the shell, and a second groove formed in the front side of the shell. A second groove is formed in the bottom of the shell, a detector is fixedly connected to the bottom of the inner wall of the shell, an indicator lamp is fixedly connected to the front side of the detector, and a probe rod is fixedly connected to the bottom of the detector. According to the utility model, the diameter reduction design is carried out on the part of the second cutter bar, so that soft deformation compensation is provided for the working process of the reamer, the influence of partial concentricity on processing can be corrected by matching with the first cutter bar 1, and the working process of the reamer is detected by arranging the detector and the probe rod in the shell, so that the detection accuracy of the reamer is improved. The reamer solves the problem that a horn hole is easy to appear when the reamer is used for machining a precision hole.

The utility model discloses a PCD (Poly Crystal Diamond) drilling reamer which comprises a reamer head, a first aperture machining section, a second aperture machining section, a chamfering machining section and a reamer handle from left to right in sequence, the tool bit, the first hole diameter machining section and the second hole diameter machining section form an integrally-formed tool body, chip grooves are formed in the two sides of the tool body, a second PCD blade is arranged on the first hole diameter machining section, a first PCD blade is arranged on the second hole diameter machining section, and an aluminum blade is arranged on one side of the tool bit. According to the PCD drilling reamer, through the arrangement of the aluminum blade, the second PCD blade and the first PCD blade, when the reamer is used for hole diameter machining, compared with a traditional reamer, after a solid hole is drilled through through the aluminum blade, the second PCD blade and the first PCD blade conduct finish machining on the hole along with continuous depth of the reamer, and finally chamfering is conducted through the chamfering machining section; the steps of drilling, hole diameter machining and chamfering machining can be completed at a time through a single tool, and the working efficiency is improved.

A hole machining tool comprises a cutting base body, a cutting edge portion and a hole wall supporting key. The hole wall supporting key is arranged on the cutting base body, located behind the cutting edge portion in the cutting feeding direction, synchronously rotates along with the base body and comprises a base and a supporting face, and when observed in the radial direction of the cutting base body, the outer edge of the supporting face and the hole wall are provided with a contact point, and the contact points of the radial outer edge of the supporting face and the hole wall are in contact. All or part of the contact points present straight line segments arranged in the axial direction of the cutting base body. When the tool is used for machining holes, on one hand, frictional heating caused by surface contact is effectively reduced, so that the hole shrinkage phenomenon is avoided, and on the other hand, a liquid film between a blade and a hole wall is reserved to the maximum extent through multi-point contact so as to achieve maximum lubrication and obtain the best roughness, and on the other hand, the edge of the blade is isolated from the hole wall, so that the service life of the tool is prolonged. Damage caused by friction of the sharp edge of the blade strip to the hole wall in the machining and tool retracting process is avoided.

The invention is related to a cutting tool (100) comprising a toolholder (110) and a cutting head (150), wherein the toolholder (110) comprises an internal cavity (118), and wherein the toolholder (110) further comprises a tunable vibration damping assembly (130) arranged in the internal cavity (118), wherein the tunable vibration damping assembly (130) has a front damper end (132) and a rear damper end (134), wherein the cutting head (150) comprises a rear head end (162), wherein the rear head end (162) is connected to the toolholder (110), and wherein the tunable vibration damping assembly (130) is separated from the cutting head (150) via an air gap (160) extending from the rear head end (162) to the front damper end (132). The invention also relates to a method (200) for assembling such a cutting tool (100).