High-twisting-force handle screwdriver

Abstract

The invention relates to a high-twisting-force handle screwdriver which comprises a screwdriver body and a screwdriver handle. An inner hole in an irregular shape is formed in the screwdriver handle. The shape of the top end of the screwdriver body is the same as that of the inner hole. The screwdriver body and the screwdriver handle are fixed through high-strength glue. The inner hole of the screwdriver handle is a semi-cylindrical inner hole or a trilateral inner hole or a quadrilateral inner hole or a hexagonal inner hole or an octagonal inner hole or a decagonal inner hole. According to the high-twisting-force handle screwdriver, the inner hole of the handle is machined into the irregular polygon, and therefore the handle can fix screwdrivers of all types including a drill bit, then the high-strength glue is used for fixing, and the technical problem of handle connecting of the screwdriver in almost 30 years is thoroughly solved accordingly.

Description

technical field [0001] The invention relates to a screwdriver, in particular to a screwdriver with a high twist handle. Background technique [0002] The shank of screwdriver such as drill bit, bit or sleeve is generally hexagonal shank, SDS shank, triangular shank, square shank, octagonal shank or round shank, and the inner hole of the shank is round. Take the drill as an example, the drill bit and the shank The connection of the part mainly includes the overall process, stamping process and pin process. The overall process is that the drill bit and the shank are integrated; the stamping process is to make a plane on the drill bit and then punch the plane to fix it; The column passes through and is fixed. At present, the processing of the shank hole can only be processed by the traditional drill bit, so the processed hole must be circular, the product torque is unqualified, the radial runout is very large, and the shank cannot have hardness. The appearance of the shank is ...

AI Technical Summary

Problems solved by technology

[0002] The shank of screwdriver such as drill bit, bit or sleeve is generally hexagonal shank, SDS shank, triangular shank, square shank, octagonal shank or round shank, and the inner hole of the shank is round. Take the drill as an example, the drill bit and the shank The connection of the part mainly includes the overall process, stamping process and pin process. The overall process is that the drill bit and the shank are integrated; the stamping process is to make a plane on the drill bit and then punch the plane to fix it; The column passes through and is fixed. At present, the processing of the shank hole can only be processed by the traditional drill bit, so the processed hole must be circular, the product torque is unqualified, the radial runout is very large, and the shank cannot have hardness. The appearance of the handle is defective, the product is easy to break, and the service life of the punching hole cannot meet the customer's expectations

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