Ozzistraightshooter Tap and Die set for common barrel muzzle thread 1/2 inch x 28 TPI.

This set includes a full 3 Tap set to make hand tapping easier and more precise.Includes Starting, intermediate and bottoming taps.Matching 1/2 x 28 SPLIT Die for barrel threading. SPLIT die allows you to create a more precise closer fitting thread. 1/2 inch x 28 TPI is a very popular thread used on many 22 cal rim-fire rifles. These are top quality tools designed for professional use.