Speedbor, 17/64", Titanium Coated Drill Bit, Lasts Up To 10 Times Longer Than Standard HSS Drill Bits, 140 Degree Split Point For Less Walking & Quicker Starts, Cutting Edge Stays Sharper Longer & Tin Coating Reduces Friction, 3 Flatted Shank Reduces Slippage In Chuck & Extends Battery Life, Application Is For Repetitive Metal Drilling With Portable Or Stationary Drill Presses, Carded.