Patent ID: 8210545
Filing Date: 2012-07-03
Classification: B23B,B25B,B25D,Y10S,Y10T

Abstract:
1. A tool holder for a rotary hammer, comprising: a receiving sleeve formed as a single piece and that is drivable in a rotating manner, for a shank part of an insertion tool, a recess being open at both end faces and being bounded therebetween by an inner circumferential surface of the receiving sleeve, wherein the inner circumferential surface ( 62 ) of the receiving sleeve ( 34 ) includes at least six flat circumferential surface sections ( 62 n through 62 u ; 84 , 86 ) in the circumferential direction, with adjacent circumferential surface sections ( 62 n , 62 o ; 62 p , 62 q ; 62 r 62 s ; 62 t , 62 u ) forming an angle of 120 degrees, wherein the inner circumferential surface (