About this item After quenching and honing, the cutting edge is sharp and non-chattering design. The staggered cutting teeth ensure accurate countersink and hole smoothness and cleanliness. It is a practical model for drilling through holes on various wood drill bits, involving It consists of head (tip part), drill body (edge screw part) and shank (fixed part) Reasonable structure design, smooth drilling, high efficiency, smooth chip removal after the drilling wall is flat Material: Tool steel Usage: Shallow hole .
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