C.S. Osborne arch punches are drop forged in one piece from the finest carbon steel in sizes from 1/8" to 7" diameter & in 2MM to 142MM diameter. Larger pieces are made with Osborne's properly engineered two piece welded construction. A unique feature of the C.S. Osborne arch punch is the inside taper which permits the punchings to clear easily through the barrel. Punches have fully polished barrel. The cutting edge is fully hardened all the way through and properly finished to provide long use trouble free punching.
These punches should be used with a C.S. Osborne # 603 Cutting Pad.
The use of a C.S. Osborne wooden mallet or rawhide hammer is recommended.