C.S. Osborne No. 149 Arch Punches (Metric Sizes)

C.S. Osborne metric arch punches are hollow, hand-struck punches that cut clean round holes and discs in leather, rubber, cork, felt, and gasket material. Strike the punch with a mallet over a cutting board, and the arched side opening lets each slug clear. These No. 149 punches come in 57 millimeter sizes from 2mm to 60mm. See Arch Punches in Inch Sizes for fractional sizes.