Machine Screw Tap Drill Bit Set, 10-32 National Fine, 21, 2-pc.

Description

combo pack 10-32 national fine plug style machine screw tap and number drill bit #21. precision cut threads, accurately formed for consistent, exact threading. heat treated and tempered for tile hard threads, and longer, useful life. designed for hand cutting applications.

Heat treated and tempered for file hard threads and longer useful life

Designed for hand cutting applications

The plug style tap is the most commonly used style of tap with 3 to 5 threads chamfered