Machine Screw Tap, Plug Style, 4-40 National Coarse

Description

4-40 national coarse plug style machine screw tap. 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