This set of durable 13 piece titanium nitride coated drill bits lasts six times longer than standard drill bits.
Titanium nitride coating facilitates faster penetration with less effort. The 1/4 "hex shank is specially designed for cordless screwdrivers, enabling you to quickly change drill bits.
Titanium coated HSS drill set with standard 1/4 "hex shank that will fit cordless screwdrivers, drills etc or use in standard drill chuck