C.S. Osborne Strap End Punch #150 - Round Point. Polished and Hardened Edges. Every Osborne Edge Is Hand File Sharpened And Is True. Available in the following sizes: 1/4", 3/8", 1/2", 5/8", 3/4®, 7/8", 1®, 1-1/8", 1-1/4®, 1-3/8", 1-1/2®, 1-5/8", 1-3/4®, 1-7/8®, and 2".®These Punches Should Be Used On A Wood Cutting Block, Or Osborne #603 Cutting Pad. The Use Of A Rawhide Mallet Or Maul Is Recommended.