Ozzistraightshooter Tap and Die set for Martini-Henri rifle.

Thread is 1.00 inch x 14 TPI, 55 degree Whitworth style.Top quality High speed steel. Tap is perfect to clean the receiver threads ready for a new barrel.Die will cut barrel thread or clean up your lathe cut thread for a better fit. Die is split with fine adjustment. Die is approx 50mm diameter.Tap requires holder for 18mm square. These are top quality tools designed for professional use.