Large hole cutter

Details Large hole cutter Large hole cutter

B - Operations, Transporting

26

D

B26D 1/36 (2006.01) B26D 1/15 (2006.01) B27B 33/18 (2006.01) B27G 15/00 (2006.01)

Patent

CA 2250727

A cutting tool having spaced elongate teeth. The tool facilitates 1) the removal of cut particles from the surface to be cut thereby enabling efficient cutting particularly of deeper holes; and, 2) the removal of the center cut out portion from the cutting tool. The tool comprises: a pilot drill bit; an anchoring disk fixed to and around a rear central portion of the drill bit; a plurality of peripherally spaced elongate teeth each having a rear end portion held in the anchoring disk, and a front end portion having a cutting edge; a sliding guide disk. slidably positioned around the drill bit and in front of the anchoring disk so that the elongate teeth are radially positioned thereby; bias means to bias the sliding guide disk in a forward position; and, retention means to prevent the guide disk from sliding forwardly on the pilot drill bit beyond the cutting edges of the teeth.

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