Patent ID: 7401667

Claim:
A multi-purpose drilling tool ( 27 ) with a boring head ( 28 ), a drill twist ( 29 ) connected thereto and a downstream clamping shank ( 30 ), a cutting element ( 1 ) being provided on the working side of the boring head ( 28 ), wherein the cutting element ( 1 ) has a face ( 9 , 24 ), at least a portion of the face ( 9 , 24 ) having a rake angle (γ) with a value of γ=0° and with a leading edge ( 25 ) extending parallel to a longitudinal drill bit axis ( 2 ), and a lateral surface ( 16 , 17 ), wherein the cutting element ( 1 ) has at least one flank ( 10 , 13 ) with a lip clearance angle (α) having a value of 5°≦α≦15°, wherein the cutting element ( 1 ) is limited laterally by two longitudinal sides ( 5 , 6 ) and two transverse sides ( 7 , 8 ), wherein a cutting lip ( 3 ) of cutting element ( 1 ) tapers from the transverse side ( 7 ) toward the longitudinal drill bit axis ( 2 ) from a width (SH) to a width (SQ), wherein the cutting element ( 1 ) has at least one cutting edge ( 11 , 12 ) formed by the face ( 9 , 24 ) and the flanks ( 10 , 13 ), wherein the flanks ( 10 , 13 ) meet at a chisel edge ( 14 ), said chisel edge ( 14 ) also joining the cutting edges ( 11 , 12 ), and wherein the face ( 9 ) extends toward a plane (E 16 ) of the lateral surface ( 16 ) at an acute taper angle (λ).