The Real Avid Accu-Punch Hammer & Pin Punch Set works to safely remove and install gun pins. The ergonomic and perfectly balanced hammer partners with easy grip hex-handle punches for precise control. Kit includes larger diameter non-marring brass punches and hardened steel micro punches for added rigidity.Features 4 interchangeable hammer heads: Rubber, Brass Steel & Nylon Gunsmithing hammer with rubberized, ergonomic grip Stand up case Steel punches: 1/16", 5/64", 3/32" Brass punches: 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 9/32" Non-marring finishing punch Pin alignment tool