Patent ID: 7922257

Claim:
A round shank chisel ( 30 ) with a clamping sleeve ( 10 ), the round shank chisel ( 30 ) is rotatably maintained in the clamping sleeve ( 10 ), the clamping sleeve ( 10 ) has inwardly punched and/or pressed in holding elements ( 16 , 17 , 18 ) distributed over a circumference of the clamping sleeve ( 10 ) and engage a circumferential groove ( 39 ) cut into a shank ( 31 ) of the round shank chisel ( 30 ), the clamping sleeve ( 10 ) is fixed in place in an axial direction on the shank ( 31 ) of the round shank chisel ( 30 ), the clamping sleeve comprising: the holding elements ( 16 , 17 , 18 ) divided between two punched edges ( 20 , 21 ) oriented transversely with respect to a longitudinal axis ( 19 ) of the clamping sleeve ( 10 ) and are punched and/or pressed inward, and the punched edges ( 20 , 21 ) extending over a portion of the circumference of the clamping sleeve ( 10 ) and having a distance from each other which corresponds to a width of a circumferential groove ( 39 ) in the shank ( 31 ) of the round shank chisel ( 30 ).