Adjustable step drill bit

Details Adjustable step drill bit Adjustable step drill bit

B - Operations, Transporting

23

B

B23B 51/00 (2006.01)

Patent

CA 2712841

An adjustable step drill bit with a plurality of cutting disks held in compression on a shaft between two stops. The cutting disks may be arranged in various configurations. Spacers may also be provided on the shaft with the cutting disks. A method of drilling a hole utilizing the drill bit to drill a pilot hole and allowing for the drill bit to be used in a pulling technique.

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