Arch Punch for .50 caliber cards and wads. Tempered steel, by Osborne. Made in the U. S. A.
This punch is 1/2" (.500") diameter, ideal for .50-70 Government, .50-90 WCF, .50-110 WCF, .50-140 Sharps, 56-50 Spencer centerfire, .50 caliber Civil War Carbine cartridges, and similar .50 caliber cartridges.