C.S. Osborne & Co. 5/16-Inch Hollow Drive Belt Punch This sturdy round shank punch was carefully designed to be the perfect choice for belt makers Made from the best grade tool steel and carefully tempered Polished barrel Forged steel, round shank, barrel polished 5/16-Inch Has a hardened cutting edge and a milled clearing hole Weighs 2 ounces hollow drive beltpunch