Real Avid, Accu-Punch Master Set, 37 Piece Punch Set, Includes 13 Nickel Plated Flat Tip Punches, 13 Nickel Plated Roll Pin Punches, 7 Brass Punches, 2 Flat Sided Punches, 1 Nylon Punch, 1 Taper Punch, 1 Pair of Plastic Tweezers Hardened steel, nickel-plated, corrosion-resistant flat tip metal punch set for removing and installing solid and hollow pins and tension springs Brass, flat tip punches for minimizing the risk of damage Staking punch and resin finishing punch Pin Alignment Tool for aligning and starting pins, Gunsmithing punches are core tools needed to modify or disassemble firearms. Most sets available today are generic repurposed hardware sets. Accu-Punch Master Punch set is designed from the ground up to work better on guns.