Wheeler Roll Pin Punch Set Tool, 9 piece set 204513 The Wheeler Engineering(R) Roll Pin Punch set is machined from hardened steel to prevent bending or breaking while installing any roll pin. The punches are designed with a hemispherical tip to provide proper alignment of the roll pin to prevent damage to the firearm and the roll pin. The 9 piece set includes: 5/16"" 1/4"" 7/32"" 3/16"" 5/32"" 1/8"" 3/32"" 5/64"" and 1/16" punches in a durable nylon sheath.