Brand: Sniper Includes: 4 Piece roll pin punch set Sizes: 1/8", 1/16", 3/32", 5/64" Includes: AR-15 Armorers' Wrench Materials: Heat Treated Steel Color: Black Warranty: Lifetime Use to effortlessly remove roll pins with diameters that match the punches (1/8" 1/16" 3/32 5/64"). Tap with a hammer to get the roll pin started before using a normal impact punch. Helps avoid damage caused by only using an impact punch = more accurate & safer. 1/16" Bolt Ejector; Charging Handle 5/64" Gas tube / Gas block; 3/32" Bolt catch and Forward assist retaining pin; 1/8" Trigger Guard