The Wheeler Engineering Roll Pin Starter Set is intended for both amateurs and professional riflemen. The set is in a practical nylon case and you will appreciate it not only when hammering out and turning pins, adjusting sights, but also during other work in the workshop and on the shooting range. The set contains hardened steel punches of dimensions: 5/16", 1/4", 7/32", 3/16", 5/32", 1/8", 3/32", 5/64", 1/16".