Century Drill & Tool 95405 Tap and Drill, 5/16-18NC

Century's tap and tap & drill Combo paks offer a convenient solution that provides the correct drill size for the tap all in one package. The tap offers precision cut threads that are accurately formed for consistent, exact treading and is heat treated and tempered for file hard threads for a longer, useful life. All taps are designed for hand applications only. Each drill bit is made of premium grade high speed steel for general drilling in wood, metal and plastic.