Drill, and method for producing a drill

Abstract: the drill extends along an axis of rotation and comprises at least three main cutting surfaces which, starting from a cutting corner arranged on a radius (r), each extend in the direction of the axis of rotation. the at least three main cutting surfaces converge on a pointed drill tip, in particular without the presence of transverse cutting surfaces. starting from the drill tip and over the entire radial extent thereof, each main cutting surface adjoins an edge-free surface, which comprises a clearance surface and in each case transitions into a respective flute.

Inventor(s): Christian Strauchmann, Herbert Rudolf Kauper, Jürgen Schwägerl, Peter Sollfrank

CPC Classification: B23B51/02 (Twist drills)

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