Patent ID: 7008150
Filing Date: 2006-03-07
Classification: B23B,Y10S,Y10T

Abstract:
1. A drill with a base body ( 1 ) and a replaceable cutting insert ( 3 ), whereby the cutting insert sits in a receptacle ( 4 ) that runs through the base body at a right angle to its longitudinal axis ( 2 ) and opens toward the drill tip ( 16 ), and whereby the cutting insert ( 3 ) is in contact with the side walls ( 5 ) of the receptacle ( 4 ) with two diametrically opposite contact surfaces, characterized by the fact that between each contact surface of the cutting insert ( 3 ) and a side wall ( 5 ) of the receptacle, there is a groove ( 8 ) that extends in the direction of the longitudinal axis ( 2 ), in which groove a clamping wedge sits with a form-fit and a friction-fit and interacts with the base body ( 1 ) and the cutting insert ( 3 ) in the manner of a self-locking device that is effective toward the drill tip ( 16 ).