Century Drill & Tool 5/16-24 National Fine Plug Carbon Steel Tap & I Letter Drill Bit Combo Pack

Tap and drill Combo pack offers correct drill size for the tap in one convenient package. Tap offers precision cut threads, accurately formed for consistent, exact threading. Tap is heat treated and tempered for file hard threads, and longer, useful life. Tap designed for hand cutting applications. Drill bit made of premium grade high speed steel for general drilling in wood, metal and plastic. Combo Pack contains 1 Tap and 1 corresponding drill bit.