Tool grip and tool with the same

Abstract

To provide a tool grip removably mounted to a tool body, which is easily mounted to the tool boy but difficult to be pulled out, and a tool with the same.SOLUTION: A tool grip 1 is removably mounted to a rear part of a tool body having a blade tip at the tip and a bar-like tool shaft in a longitudinal direction, but a slit groove 15 linearly extending in the longitudinal direction is formed in the inner surface of a mounting hole 14 formed to insert / mount the tool shaft of the tool body. Thus, the tool body can be smoothly inserted and easily mounted to the tool grip 1, difficult to be pulled out, and firmly mounted / fixed. Therefore, the tool grip 1 easily mounted but difficult to be pulling-out from the tool body is realized.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a tool grip and a tool with a grip. More specifically, the present invention relates to a tool grip that is removably attached to the rear portion of a tool shaft of a tool body, and a tool with a tool grip that combines ease of attachment and difficulty of detachment.

Background Art

[0002] Tools (in the present invention, a tool without a grip attached is referred to as a "tool body") that are held and operated by hand, such as a driver, have a cutting edge as a functional part at the tip, and in order to be easy to hold and have good operability during use, a grip (handle) may be attached longitudinally to the rear portion of a rod-shaped tool shaft. Such a grip (tool grip) is required to have elasticity as a molded body for reasons such as reducing the compressive force applied to the fingers when the user holds it.

[0003] As a manual tool (tool with a grip) equipped with such a tool grip, for example, there is provided a member having a configuration including a grip body formed of a hard resin around a tool shaft and a grip in which the periphery of the grip body is partially covered with a covering layer made of a soft resin (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] The grip for a tool having the configuration disclosed in Patent Document 1 and the like described above was not designed to be fixed to the tool body and removable. On the other hand, in recent years, there has been provided a grip for a tool which is formed of a molded body made of an elastic soft resin such as silicone rubber or synthetic rubber and is removable with respect to the rear portion of the tool shaft of the tool body. Since such a grip for a tool is integrally formed of an elastic soft resin such as silicone rubber as a whole, it is easy to hold, and as a result, the operability when attached to the tool body is also good.

[0006] However, in the case of a conventional removable grip for a tool (grip) having such a configuration, there has been a problem that it is easy to come off with respect to the tool shaft of the tool body. When the grip for a tool is easy to come off with respect to the tool shaft of the tool body, not only does the grip rotate idly during work and the operability deteriorates, but also when the tool body comes off from the grip for a tool during work at a high place and falls off, if it hits a worker below, there has been a problem that the worker may be injured.

[0007] Due to such problems, in order to make it difficult for the tool shaft to come off, in some cases, the clearance between the inner diameter of the mounting hole of the grip for a tool and the outer diameter of the tool shaft is made as small as possible, or the inner diameter of the mounting hole of the grip for a tool is made smaller than the outer diameter of the tool shaft. On the other hand, in such a case, since it becomes difficult to insert the tool shaft of the tool body into the mounting hole of the grip for a tool, another problem has occurred that the attachment of the grip cannot be carried out smoothly.

[0008] Against the background as described above, there has been a demand for providing a grip for a tool that is removably attached to the tool body and has both ease of attachment to the tool body and difficulty of coming off.

[0009] The present invention has been made in view of the above problems, and an object thereof is to provide a grip for a tool that is removably attached to the tool body and has both ease of attachment to the tool body and difficulty of coming off, and a tool with a grip.

Means for Solving the Problem

[0010] In order to solve the above problems, the tool grip according to the present invention is a tool grip that is removably attached to the tool body and is longitudinally attached to the rear part of the tool body having a rod-shaped tool shaft, is integrally formed of a soft resin, a mounting hole for inserting the rear part of the tool shaft in the longitudinal direction is formed, and is characterized in that a slit groove extending linearly in the longitudinal direction is formed on the inner surface of the mounting hole.

[0011] The tool grip according to the present invention is characterized in that, in the present invention described above, the shape of the mounting hole is circular in cross-section.

[0012] The tool grip according to the present invention is characterized in that, in the present invention described above, the shape of the slit groove is a shape that closes toward the bottom in cross-section.

[0013] The tool grip according to the present invention is characterized in that, in the present invention described above, the shape of the slit groove is semi-circular or semi-elliptical in cross-section.

[0014] The tool grip according to the present invention is characterized in that, in the present invention described above, the depth of the slit groove is 0.3 to 0.8 mm.

[0015] The tool grip according to the present invention is characterized in that, in the present invention described above, the difference between the outer diameter of the tool shaft of the tool body and the inner diameter of the mounting hole is such that the outer diameter of the tool shaft - the inner diameter of the mounting hole = 0 to 0.1 mm.

[0016] The grip for a tool according to the present invention is characterized in that, in the present invention described above, the soft resin is at least one selected from the group consisting of silicone rubber, natural rubber, butadiene rubber, styrene-butadiene rubber, acrylonitrile-butadiene-styrene rubber, ethylene-propylene-diene rubber, butyl rubber, ethylene-propylene rubber, thermoplastic elastomer, and thermoplastic polyurethane.

[0017] The tool with a grip according to the present invention is characterized in that the tool with a grip according to the present invention described above is attached to the rear part of a tool body having a rod-shaped tool shaft. is characterized in that the grip for a tool according to the present invention described above is attached.

Effect of the Invention

[0018] The grip for a tool according to the present invention is detachably attached to the tool body, and a slit groove extending linearly in the longitudinal direction is formed on the inner surface of a mounting hole formed for inserting and mounting the tool shaft of the tool body. Therefore, the tool body can be smoothly inserted into the grip for a tool, making it easy to attach, difficult to come off, and enabling strong attachment and fixing. It becomes a grip for a tool that combines ease of attachment to the tool body and difficulty in coming off.

[0019] Further, the tool with a grip according to the present invention enjoys the effects exhibited by the grip for a tool according to the present invention described above, and becomes a tool (tool with a grip) having a grip for a tool that combines ease of attachment to the tool body and difficulty in coming off.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0021] (I) Configuration of the tool grip 1: Hereinafter, with reference to the drawings, one aspect of the tool grip 1 according to the present invention will be described.

[0022] FIG. 1 is a perspective view showing one aspect of the tool grip 1 according to the present invention, FIG. 2 is a front view showing one aspect of the tool grip 1 according to the present invention, FIG. 3 is a view of FIG. 2 seen from the direction of the bold arrow, and FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3, respectively.

[0023] Also, FIG. 5 is a front view showing one aspect of the tool body 2, and FIG. 6 is a view of FIG. 5 seen from the direction of the bold arrow, respectively.

[0024] The tool grip 1 according to the present invention is a tool grip 1 that is detachably attached to the tool body 2 for being longitudinally attached to the rear portion 23 of the tool body 2 having a rod-shaped tool shaft 22, integrally formed of a soft resin, a mounting hole 14 for inserting the rear portion 23 of the tool shaft 22 in the longitudinal direction is formed, a slit groove 15 linearly extending in the longitudinal direction is formed on the inner surface of the mounting hole 14, and includes the above as a basic configuration.

[0025] In the tool grip 1, the "longitudinal direction" refers to the axial direction of the mounting hole 14 to be formed (which is also the axial direction of the tool body 2 to be mounted). For example, it refers to the direction of the arrow shown in FIG. 1 or the like. Also, for the tool grip 1, the direction in which the insertion port 13 for inserting the tool shaft 22 of the tool body 2 is located is the "front", and the direction opposite to the front (the direction in which the hook attachment portion 12 described later is formed) is the "rear". The front end is the "tip", and the rear end is the "rear end".

[0026] Also, for the tool body 2, the direction in which the functional part such as the cutting edge 21 is attached is the "front", and the direction opposite to the front (the direction where the rear part 23 of the tool shaft 22 inserted into the insertion port 13 of the tool grip 1 is located) is the "rear". The front end is the "tip", and the rear end is the "rear end".

[0027] As shown in FIG. 1 and the like, the tool grip 1 according to the present invention (hereinafter, may be simply referred to as "grip 1") is a gripping portion that can mount the rear portion of the tool body 2 having a rod-shaped tool shaft 22 as shown in FIGS. 5 and 6 in the longitudinal direction, and is detachable from such a tool body 2. The grip 1 is shown as an example having a substantially cylindrical shape or a substantially frustum shape with a diameter increasing toward the rear in the longitudinal direction in the present embodiment. The tool grip 1 has six concave ribs 11 formed in the longitudinal direction on the periphery, so that unevenness appears in the longitudinal direction on the outer surface, making it easier to grip and less likely to slip when the user holds and uses it by hand.

[0028] As shown in FIG. 1 and the like, the tool grip 1 has a shape in which the front end and the rear end are rounded in the present embodiment, and a hook attachment portion 12 is formed at the rear end of the tool grip 1. The hook attachment portion 12 has a flat vertically long elliptical shape, and a hole 12a is formed substantially at the center thereof. One end of a hook (for example, an S-shaped hook not shown) can be attached to the hole 12a, and the other end of the hook can be attached to a desired place. Also, a member such as a ring not shown can be further attached to the hole 12a, and a hook or the like not shown can be attached to such a ring.

[0029] As shown in FIGS. 1, 3, 4, etc., inside the tool grip 1, a mounting hole 14 for mounting the tool shaft 22 of the tool body 2 to be mounted is formed along the longitudinal direction. On the tip side of the tool grip 1, an insertion port 13 for inserting the tool shaft 22 is formed.

[0030] The shape of the mounting hole 14 is preferably adapted to the shape of the tool shaft 22 of the tool body 2 to be mounted and inserted and fixed. In the present embodiment, in a cross-sectional view (a cross-section in a direction orthogonal to the longitudinal direction (axial direction). The same applies to the cross-section of the slit groove 15 hereinafter), a mounting hole 14 having a circular shape is formed over the longitudinal direction, and the hollow portion is a mounting hole 14 having a cylindrical shape. Note that the shape of the mounting hole 14 is circular in cross-sectional view, excluding the portion where the slit groove 15 described later is formed.

[0031] Generally, for a tool with a grip (grip: corresponding to the tool grip 1 of the present invention) mounted, there are a normal type (also called a non-through type, where the tool shaft 22 is fixed where it enters halfway inside the grip 1) and a through type (where the tool shaft 22 reaches the rear end of the grip 1). In the present embodiment, a normal type is shown.

[0032] The tool body 2 illustrated in FIGS. 5 and 6 has, in the present embodiment, a cutting edge 21 as a functional part formed on the tip side. Also, as can be seen from FIG. 6, which is a view from the direction of the black arrow, the tool shaft 22 is formed from a round bar. Such a cutting edge 21 may be removable with respect to the tool shaft 22, and may be of various blade widths for removing sealants, caulking, etc., and may be configured to attach members having a shape such as a so-called plus (+) or minus (-) screwdriver. Note that the specific structure for removal is omitted.

[0033] The tool body 2 is a tool to which the tool grip 1 is to be attached, and generally refers to the state where the grip 1 is not attached. Including the tool shaft 22, for example, it often has a round bar shape with an outer diameter preferably of φ4.0 to 10.0 mm (more preferably φ6.0 to 9.0 mm, even more preferably φ6.0 to 8.0 mm). (Note that the shape of the mounting hole 14 of the tool grip 1, including the case where the tool body 2 has a round bar shape, is formed with a mounting hole 14 having a circular cross-sectional view that conforms to such a round bar shape over the longitudinal direction, and when the hollow part is cylindrical, the inner diameter of the mounting hole 14 is preferably formed along the outer diameter of the above-mentioned tool body 2 (tool shaft 22). The detailed relationship between the outer diameter of the tool shaft 22 and the inner diameter of the mounting hole 14 will be described later.) The tool body 2 is generally formed of a material having a certain degree of hardness, such as metal materials such as stainless steel, iron, titanium, aluminum, copper, and inorganic materials such as carbon and ceramics, but the material is not particularly limited.

[0034] Also, as a specific configuration of the tool body 2, there are a designer knife (also called an art knife), a screwdriver (driver) without a grip part, etc. As long as a functional part to be operated such as a cutting edge 21 is formed at the tip and the tool grip 1 can be attached to the rear part 23 of the tool shaft 22 that becomes the body part, the type etc. are not particularly limited.

[0035] A linear slit groove 15 is formed along the longitudinal direction on the inner surface of the mounting hole 14 of the tool grip 1. As shown in FIG. 3 and FIG. 8 to be described later, in this embodiment, the slit groove 15 shows a semi-circular (or semi-elliptical) mode in cross-sectional view. The shape of the slit groove 15 is not particularly limited, but in addition to the above-mentioned semi-circular or semi-elliptical shape, it can be any shape such as a triangular shape, a quadrangular shape, a pentagonal shape, a hexagonal shape, etc., a polygonal shape, a geometric shape, etc.

[0036] The shape of the slit groove 15 is preferably such that when the tool shaft 22 of the object to be mounted is inserted, it is likely to moderately expand in the circumferential direction and is likely to conform to the outer periphery of the tool shaft 22. In a cross-sectional view, it is preferably a shape that closes toward the bottom. A semi-circular shape, a semi-elliptical shape, a triangular shape, etc. are more preferable, and a semi-circular shape and a semi-elliptical shape in which the sides forming them are gentle and are more likely to conform to the outer periphery of the tool shaft 22 of the object to be mounted are particularly preferable. Note that since the slit groove 15 has a shape that closes toward the bottom in a cross-sectional view, in a cross-sectional view, the position facing the mounting hole 14 (which is common to the position facing the outer surface of such a tool shaft 22 when the tool shaft 22 of the tool body 2 is inserted) is formed to be open.

[0037] The slit groove 15 is formed to linearly (straight) extend along the longitudinal direction on the inner surface of the mounting hole 14 of the tool grip 1. At least one such slit groove 15 may be formed with respect to the inner surface of the mounting hole 14, but the number may be 1 to 4. On the other hand, if the number of the slit grooves 15 is too large, the mountability deteriorates and the tool body 2 may easily come off. Therefore, it is sufficient to form 1 to 3. When the number of the slit grooves 15 is two or more (a plurality), it is preferably formed at positions symmetric (equally spaced) with respect to the inner surface of the mounting hole 14.

[0038] Since the tool shaft 22 of the tool body 2 to be mounted is generally round bar-shaped as shown in FIGS. 5 and 6, in order to prevent it from falling off, the difference between the outer diameter of the tool shaft 22 of the tool body 2 and the inner diameter of the mounting hole 14 of the tool grip 1 is preferably such that the outer diameter of the tool shaft 22 - the inner diameter of the mounting hole 14 = 0 to 0.1 mm (0 mm indicates that the inner diameter of the mounting hole 14 of the tool grip 1 and the outer diameter of the tool shaft 22 of the tool body 2 are the same). More preferably, the outer diameter of the tool shaft 22 - the inner diameter of the mounting hole 14 = 0.03 to 0.08 mm. Particularly preferably, the outer diameter of the tool shaft 22 - the inner diameter of the mounting hole 14 = 0.03 to 0.06 mm.

[0039] FIG. 7 is an enlarged view of the periphery of the slit groove 15. When the slit groove 15 is viewed in cross section, the size (depth D and width W of the portion facing and contacting the tool axis 22 of the tool body 2) of the slit groove 15 is preferably such that the depth D of the slit groove 15 is 0.3 to 0.8 mm, and particularly preferably 0.4 to 0.6 mm.

[0040] Also, the width W of the slit groove 15 is preferably 0.45 to 2.0 mm, more preferably 0.6 to 1.6 mm, and particularly preferably 0.8 to 1.2 mm, including the case where the shape of the slit groove 15 is semi-circular in cross section as shown in FIG. 7. In addition, the width W of the slit groove 15 may preferably be set with reference to the range of 3 / 2 to 5 / 2 times the depth D of the slit groove 15 described above.

[0041] Here, in order to make it difficult for the tool body 2 to come out of the tool grip 1, when the outer diameter of the tool body 2 is the same as the inner diameter of the mounting hole 14 formed in the tool grip 1, or when the inner diameter of the mounting hole 14 is smaller than the outer diameter of the tool axis 22 (outer diameter of the tool axis 22 ≥ inner diameter of the mounting hole 14. Hereinafter, it may also be referred to as the "zero-zero design"), there is no escape path for the air existing inside the compressed mounting hole 14 due to the insertion of the tool axis 22 of the tool body 2, and smooth insertion becomes impossible. Here, although a hole for air escape may be formed in the grip 1, in this case, while a place for air escape is formed and it is suppressed that the insertion of the tool axis 22 of the tool body 2 becomes difficult, the tool axis 22 becomes likely to come out of the mounting hole 14 of the tool grip 1, which is not preferable.

[0042] On the other hand, in the configuration where the slit groove 15 extending linearly along the longitudinal direction is formed on the inner surface of the mounting hole 14 of the tool grip 1, the air can easily escape through the slit groove 15, and smooth insertion and mounting can be performed.

[0043] Also, even when the relationship between the inner diameter of the mounting hole 14 and the outer diameter of the tool shaft 22 is as in the above-mentioned "zero-zero design", including the case of molding shrinkage of the tool grip 1 manufactured by injection molding or the like, when the tool shaft 22 is inserted into the mounting hole 14, the slit groove 15 extending linearly along the longitudinal direction on the inner surface of the mounting hole 14 comes into contact with the outer surface of the tool shaft 22 and expands in the circumferential direction. Therefore, the slit groove 15 adjusts the clearance with the tool shaft 22. Further, since the outer surface of the tool shaft 22 and the inner surface of the slit groove 15 come into contact and conform to each other, it becomes difficult to pull out even when a force is applied in the direction opposite to the insertion direction of the tool shaft 22 (the direction in which the tool shaft 22 comes out), and it is possible to prevent the tool body 2 from falling out of the mounting hole 14 of the tool grip 1.

[0044] The tool grip 1 according to the present invention is a molded body (soft resin molded body) of such a resin integrally formed of a soft resin, preferably an elastic soft resin (soft elastic resin). As the material constituting the tool grip 1, for example, rubber materials such as silicone rubber (SiQ), natural rubber, butadiene rubber (BR), styrene butadiene rubber (SBR), acrylonitrile butadiene styrene rubber (ABS), ethylene propylene diene rubber (EPDM), butyl rubber (IIR), ethylene propylene rubber (EPM), etc., rubber equivalent materials such as thermoplastic elastomer (TPE), thermoplastic polyurethane (TPU), synthetic resins such as polyethylene-based resin, ionomer-based resin, ethylene-propylene copolymer, foamed polyurethane, etc. can be used. These may be used alone or in combination of two or more.

[0045] As materials for constituting the tool grip 1, among these, in terms of being moderately soft and rich in elasticity, etc., rubber materials such as silicone rubber (SiQ), natural rubber, butadiene rubber (BR), styrene-butadiene rubber (SBR), acrylonitrile-butadiene-styrene rubber (ABS), ethylene-propylene-diene rubber (EPDM), butyl rubber (IIR), ethylene-propylene rubber (EPM), etc., and in addition, rubber materials and rubber-equivalent materials such as thermoplastic elastomer (TPE), thermoplastic polyurethane (TPU), etc. are preferably used. These may be used alone, or two or more of them may be used in combination.

[0046] (II) Configuration of the tool 3 with a grip: FIG. 8 shows a perspective view of the tool 3 with a grip (a perspective view of the state where the tool body 2 is attached to the tool grip 1 for the tool). The tool grip 1 for the tool can be used as the tool 3 with a grip by being attached to the rear portion 23 of the tool shaft 22 of the tool body 2.

[0047] Specifically, the tool grip 1 for the tool can be attached to the tool body 2 by inserting the rear portion 23 of the tool body 2 having a cutting edge 21 at the tip and a rod-shaped tool shaft 22 into the inside of the mounting hole 14 from the insertion port 13 of the tool grip 1 for the tool, and thus the tool 3 with a grip is formed.

[0048] The tool 3 with a grip shown in FIG. 8 is used by a user grasping the tool grip 1 (grip) and operating the cutting edge 21 formed at the tip of the attached tool body 2. Also, when not in use, the tool grip 1 can be removed from the tool body 2.

[0049] (III) Effects of the invention: The tool grip 1 of the present invention described above is detachably attached to the tool body 2, and since a slit groove 15 extending linearly in the longitudinal direction is formed on the inner surface of the mounting hole 14 formed for inserting and mounting the tool shaft 22 of the tool body 2, the tool body 2 can be smoothly inserted into the tool grip 1, making it easy to mount, difficult to come off, and enabling strong mounting and fixing. Thus, the tool grip 1 has both ease of mounting and difficulty in coming off with respect to the tool body 2.

[0050] In addition, the tool 3 with a grip according to the present invention enjoys the effects achieved by the tool grip 1 according to the present invention described above, and becomes a tool (tool 3 with a grip) having a tool grip 1 that combines ease of mounting and difficulty in coming off with respect to the tool body 2.

[0051] (IV) Modifications of the Embodiment: It should be noted that the aspects described above show one aspect of the present invention, and the present invention is not limited to the above-described embodiments. Needless to say, modifications and improvements within the scope that includes the configuration of the present invention and can achieve the object and effects are included in the content of the present invention. Also, the specific structure, shape, etc. when implementing the present invention can be other structures, shapes, etc. within the scope that can achieve the object and effects of the present invention. The present invention is not limited to the above-described embodiments, and modifications and improvements within the scope that can achieve the object of the present invention are included in the present invention.

[0052] For example, in the above-described embodiment, as shown in FIG. 1 and the like, as the tool grip 1, an example of a configuration in which six concave ribs 11 are formed in the longitudinal direction around it was described. However, the number of the concave ribs 11 and the like are not limited to the examples shown in FIG. 1 and the like, and can be any number and the like. Also, the formation of the concave ribs 11 is not essential.

[0053] In the above-described embodiment, a semi-circular shape in cross-sectional view was given as an example of the shape of the slit groove 15 formed on the inner surface of the mounting hole 14 of the tool grip 1. However, the shape of the slit groove 15 is not limited to a semi-circular shape in cross-sectional view. On the other hand, for example, when inserting the tool shaft 22 of the object to be mounted, a shape that is moderately easy to expand in the circumferential direction and is easy to conform to the outer periphery of the tool shaft 22, such as a shape that closes toward the bottom in cross-sectional view, is preferably adopted as described above.

[0054] In the above-described embodiment, an example was given in which the shape of the tool body 2 including the tool shaft 22 is a round bar shape, and the shape of the mounting hole 14 of the tool grip 1 is a mounting hole 14 having a circular cross-sectional view that conforms to such a round bar shape and is formed over the longitudinal direction, and the hollow portion has a cylindrical shape. However, the shapes of the tool body 2 and the mounting hole 14 of the tool grip 1 are not limited to these. For example, the shape of the tool body 2 including the tool shaft 22 may be a triangular bar, a square bar, or a bar-shaped member with a polygonal cross-section such as a pentagon, and the shape of the mounting hole 14 of the tool grip 1 may be a shape along it, and these shapes can be arbitrarily determined. In addition, the specific structure, shape, etc. during the implementation of the present invention may be other structures, etc. within the range that can achieve the object of the present invention.

Industrial Applicability

[0055] The present invention has high industrial applicability as a means for providing a tool grip to be mounted on a tool body or the like that forms a cutting edge at the tip and is used as a removal tool for sealing, caulking, etc. with a simple structure.

Explanation of Reference Numerals

[0056] 1...... Tool grip 11...... Concave rib 12...... Hook attachment part 12a...... Hole 13...... Insertion port 14...... Mounting hole 15...... Slit groove 2...... Tool body 21...... Cutting edge 22 …… Tool shaft 23 …… Rear part 3 …… Tool with grip D …… Depth of slit groove W …… Width of slit groove

Claims

1. A tool grip removable from the tool body, which is mounted longitudinally on the rear part of the tool body having a rod-shaped tool shaft, is integrally formed of a soft resin, has a mounting hole formed for inserting the rear part of the tool shaft longitudinally, and is characterized in that a slit groove extending linearly in the longitudinal direction is formed on the inner surface of the mounting hole.

2. The tool grip according to claim 1, wherein the shape of the mounting hole is circular in cross-section.

3. The tool grip according to claim 1 or claim 2, wherein the shape of the slit groove is a shape that closes towards the bottom in cross-section.

4. The tool grip according to claim 3, wherein the shape of the slit groove is semi-circular or semi-elliptical in cross-section.

5. The tool grip according to claim 4, wherein the depth of the slit groove is 0.3 to 0.8 mm.

6. The tool grip according to claim 1 or claim 2, wherein the difference between the outer diameter of the tool shaft of the tool body and the inner diameter of the mounting hole is such that the outer diameter of the tool shaft - the inner diameter of the mounting hole = 0 to 0.1 mm.

7. The tool grip according to claim 1 or claim 2, wherein the soft resin is at least one selected from the group consisting of silicone rubber, natural rubber, butadiene rubber, styrene-butadiene rubber, acrylonitrile-butadiene-styrene rubber, ethylene-propylene-diene rubber, butyl rubber, ethylene-propylene rubber, thermoplastic elastomer, and thermoplastic polyurethane.

8. A tool with a grip, characterized in that the tool grip according to claim 1 or claim 2 is mounted on the rear part of a tool body having a rod-shaped tool shaft. ​

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