Double cut

Details Double cut Double cut

B - Operations, Transporting

23

D

B23D 63/00 (2006.01) B27B 33/02 (2006.01)

Patent

CA 2042703

ABSTRACT Hack saw blades, jig saw blades and band saw blades that are used for cutting metals and hard substances are useful only as long as their cutting teeth are sharp. Since the teeth of said blades cannot be re-sharpened, blades with dull teeth are discarded and wasted even though the metal of the blade is still good and useful. This invention doubles the usefulness of hack saw blades, jig saw blades and band saw blades by manufacturing them with a row of cutting teeth on each of the two narrow edges of said blades.

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