Drill having two or more cutting edges comprising...

Details Drill having two or more cutting edges comprising... Drill having two or more cutting edges comprising...

B - Operations, Transporting

23

B

77/30

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

Patent

CA 1277516

Abstract of the Disclosure A drill having two or more cutting edges comprising exchangeable cutting members A drill having two or more cutting edges is provided with interchangeable cutting members. The cutting members are fastened by screws in corresponding recesses formed in the drill bit. The cutting members are embodied by interchange- able plates and provided with fastening portions behind the main cutting edge, in the direction of cutting. The screws engage through these fastening portions in threaded bores formed in the front face of the drill bit.

533944

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