High Performance 12 28 UNF Tap and Die Set Perfect for Professional Use
Internal thread on muzzle or muzzle device. Model: 12-28 UNF. Great for muzzle work. Great for making or restoring a man. 1 12-28 UNF Tap. 1 12-28 UNF Die. Collects in the grooves as you cut, making it for most shallow cutting applications.