230PCS HSS Titanium Coated Twist Drill Bit Set

Short Description:

This drill bit set is constructed of high speed steel with a titanium nitride coating, which give it very high surface hardness to help penetrate tough materials while highly corrosion resistant reducing friction between bit and workpiece.
These drill bits come with a twist design to increase cutting speed with an angled tip that is a 135 degree split point for precise self-centering and designed to cut holes faster as it prevents walking, clears chips and particles faster.
Black oxide finish reduces bit wear while promoting chip and coolant flow on ferrous material.