Three-edge auger bit with high cutting efficiency

The utility model relates to the field of wood processing tools, in particular to a three-blade auger bit with high cutting efficiency. Comprising a cutter body; the knife handle is connected to the knife body; the cutter body comprises a main cutting edge arranged at the front end of the cutter body; the auxiliary cutting edge is arranged on the peripheral side of the cutter body; the chip groove is formed in the peripheral side of the cutter body; the number of the main cutting edges, the number of the auxiliary cutting edges and the number of the chip grooves are all three. A cutting groove is further formed in the main cutting edge; due to the fact that the cutting grooves are formed in the main cutting edges, wood chips are smaller in size and easy to discharge, and cutting efficiency is improved. 本实用新型涉及一种木材加工工具领域，尤其涉及一种高切削效率的三刃支罗钻；包括：刀体；刀柄，刀柄连接在刀体上；其中刀体包括：主切削刃，主切削刃设置在刀体的前端；副切削刃，副切削刃设置在刀体的周侧；排屑槽，排屑槽设置在刀体周侧；主切削刃、副切削刃和排屑槽均设置三条；主切削刃上还设有切削槽；本实用新型可以通过在主切削刃上设置切割槽，使木屑体积更加小容易排出，从而增加切削效率。