Set of 20 Pin Punches Set contains two each of 10 different size hardened steel punches. Flat tips range from .020" to .050"in diameter and are easily ground to make other sizes. Punches are 1-5/8" long, with a 3/32" shank. Used to drive out pins, broken screws, riveting, etc. Adjustable brass holder, 3-1/4" long, prevents damage from hammer.