Perfect for driving out the door hinge pins after you have ground off the heads. Punches are made of chrome-alloy steel, hardened with a black-nitride finish. Handles have a knurled finish to help hold them. The set includes 1/8", 3/16" 1/4", 5/16" and 3/8" punch sizes. The punch section is 3.5" long, overall length is 8". LIFETIME WARRANTY.