The Round or Drive Punches are drop forged from the finest special carbon steel and carefully hardened. Features a polished barrel. The hole tapers back from the cutting edge so that the punched pieces clear freely and require only a light blow with a mallet. Available in 17 sizes.The sizing chart at the link below must be printed to see actual size of diameter: Size Chart Available - Click Here
Use punches on a wood or plastic cutting block or the C.S. Osborne # 603 Cutting Pad. To apply pressure, use of a C.S. Osborne wooden or rawhide mallet, or rawhide maul is recommended. Not recommended for use with a steel hammer.