C.S. Osborne No. 155

revolving hole punch manufactured by C.S. Osborne

forged body

threaded, hardened, carbon tool steel punches, called “tubes”

reach from cutting tube to back of jaws 1¼″

sold with two combinations of tubes, “0-7” or “1-6”. See tube chart below.

replacement tubes, anvils, and springs available

Compare:

Available Tubes

Number Diameter 0-7 1-6
0 5⁄64″ ≈1.984 mm
1 3⁄32″ ≈2.381 mm
2 7⁄64″ ≈2.778 mm
3 1⁄8″ ≈3.175 mm
4 5⁄32″ ≈3.969 mm
5 11⁄64″ ≈4.366 mm
6 3⁄16″ ≈4.762 mm
7 13⁄64″ ≈5.159 mm

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