The Accu-Punch features a re-imagined hammer has an ergonomic grip and balanced weight to give both precise control and driving power. The hammer head faces can be switched between steel, brass, rubber, and nylon. There are twelve solidly built, precision punches for pins on all your guns. Each pin is clearly labeled and ringed with rubber for added grip. Plus, the Pin Alignment Tool holds even the smallest pins precisely over their holes to easily drive them in. The kit includes: 10 Steel Pin Punches with Rubber Rings for Grip; Pin Alignment Tool; Balanced, Ergonomic Hammer with Interchangeable Hammer Heads; 4 Interchangeable Hammer Heads; Kickstand Tool Case with Peg Board Holes.