Steel Drive Pin Punch Set, 4" Length, 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16" Punch Diameter. The Starrett 565 Drive Pin Punch is well proportioned, hardened, properly tempered, nicely finished, and have a knurled finger grip. Each punch has the size stamped on the head. SET of 8: 565A/B/C/D/E/F/G/H in Protective Vinyl Case.