Deep-boring drill

Details Deep-boring drill Deep-boring drill

B - Operations, Transporting

23

B

B23B 41/02 (2006.01) B23B 51/04 (2006.01) B23Q 1/00 (2006.01) B23Q 5/04 (2006.01)

Patent

CA 2121576

ABSTRACT OF THE DISCLOSURE Described is a method of producing deep bores, in particular in wood. In this method, misdirection of the drill is prevented and adequate chip removal is ensured. Intended for use in this method is a deep-bore drill comprising two hollow shafts fitted with cutter elements, the hollow shafts being fitted concentrically one inside the other and being rotatable independently of each other. Incorporated in this deep-boring drill are channels for the supply and return of compressed air which not only cools the drill but also removes the chips from the drill hole.

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