Wood and cement bit

Abstract

The invention discloses a wood and cement bit, comprising a wood tip, a cement tip and a drill body connected together. One end of the drill body is connected with the wood tip. The drill body is integrated to the wood tip. The other end of the drill body is connected with the cement tip. The drill body is integrated to the cement tip. The wood and cement drill has the advantages that the cement tip and the wood tip are connected through the drill body and the bit is suitable for drilling both wood and cement accordingly.

Description

technical field [0001] The invention belongs to the field of drill bits, in particular to a dual-purpose drill bit for wood and cement. Background technique [0002] A tool on a drill, drill press, or drilling machine that creates holes in a workpiece or rock. Xu Chi's "Goldbach's Conjecture Oil Head": "In 1956, the drilling materials in our country were a little tight, and the drill bits were not enough." During the work process, the drill bit rotates with the vertical shaft and moves axially at the same time. The soil is cut under the torque and axial force of the drill bit, and loosened under the extrusion and centrifugal force of the working blades, forming a soil flow that is pressed to the pit wall and lifted to the surface along the page. When the soil flow moves to the place where there is no pit wall, the broken soil is thrown around the pit due to the centrifugal force, and the digging process is completed. [0003] But, in the prior art, a kind of drill bit can ...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, one type of drill bit can only drill one type of hole, and its functionality is relatively single. Two kinds of drill bits need to be used for conversion for the holes of wood and cement, which increases the manpower.

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