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B - Operations, Transporting

23

B

77/36

B23B 29/00 (2006.01) B23B 51/04 (2006.01)

Patent

CA 1230994

ABSTRACT OF THE DISCLOSURE An annular hole cutter having a shank and an integral cylindrical body provided with a plurality of axially extended cutting teeth which each has an inner cutting edge and an outer cutting edge. The inner and outer cutting edges are equal in radial width and their inner ends meet in a common leading cutter point. The outer and inner cutting edges on each cutting teeth share a substantially mutual radial face.

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