Ideal tools for removing hollow, split roll pins, this Lyman Armorer's 7 Piece Hex Punch Set features a special round nose design to allow proper alignment of the punch in the roll pin to prevent damage to fine mechanisms such a trigger group parts. Set Includes:1 Center Punch,1 Starter Punch Pin Punches: 1/16, 5/64, 3/32, 1/8, 5/32