Clear plate guide for easy alignment * Made from precision ground hardened alloy steel * Accurate to within 0.002" * Includes nine punches: 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8" & 3/4" * Capacities: 20 Gauge Steel Sheet, 13 Gauge Aluminum & Brass / Includes blow molded storage case