Specification Features: 100% Brand New and High Quality 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
