A radial edge drill bit with sheath

Abstract

The invention provides a radial edge drill bit with a protection sleeve. The radial edge drill bit comprises a drill edge and a drill handle, wherein a round support frame is arranged on the drill handle in a sheathing manner, a plurality of baffle plates are hung on the round support frame, a wire winding ring is arranged at one end, near the drill edge, of the outer side of each baffle plate, the top end of the drill handle is provided with a pull wire fixing device, each baffle plate respectively passes through wire regulating positions arranged on the wire winding ring and the pull wire fixing device, each baffle plate is in a rectangular shape, one end of each baffle plate is in a circular arc shape, and the radian of the circular arc shape is identical to the radian of the round support frame. The radial edge drill bit has the advantages that the structure is novel, and the operation is simple and convenient, so the protection sleeve realizes the multifunction, and the cost is reduced.

Description

Technical field [0001] The invention belongs to the field of tools, and specifically relates to a drill bit, especially a radial blade drill bit with a sheath. Background technique [0002] The drill bit is a kind of drilling tool. It has a wide range of uses. It is generally composed of a drill blade and a drill shank. The drill blade is very sharp, and it is easy to cut the staff during use and installation. For edge drills, the cutting edge groove is relatively large, and the generated fine chips will be more. During the drilling process, the cutting chips will follow the cutting edge groove upwards, which will cut the staff. In the past, the drill bit is generally a sheath placed on the drill. It is different from the protective cover when the drill is used, which wastes raw materials. Summary of the invention [0003] In order to solve the above-mentioned problems, the present invention provides a radial blade drill bit with a sheath which can avoid cuts of workers. [0004] ...

AI Technical Summary

Problems solved by technology

[0002] The drill bit is a drilling tool with a wide range of uses. It is generally composed of a drill blade and a drill shank. The drill blade is very sharp, and it is easy to cut the staff during use and installation. For radial For the edge drill bit, the edge groove is relatively large, and there will be more fine chips generated. During the drilling process, the cutting chips will go up with the edge groove, which will cut the staff. In the past, the drill bit is usually the sheath placed by the drill bit. It is different from the protective cover when using the drill bit, which wastes raw materials

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