Century Drill & Tool 170 Piece HSS Drill Bit Set with Case

The ultimate in durability and sharpness, the Century Drill & Tool 170 Piece HSS Drill Bit Set with Case offers fast drilling in steel, wood, plastic. High Speed Steel construction makes this bit stand up to wear and tear in any material, including aluminum, brass and copper. A 135-degree, split point design will not walk or wander at the starting surface.