This advanced kit works to safely remove and install gun pins. The ergonomic and perfectly balanced hammer partners with easy grip hex-handle punches for precise control. Hammer & Pin Punch Set includes 4 interchangeable hammer heads: rubber, brass, steel and 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 and pin alignment tool.