Patent ID: 7972199
Filing Date: 2011-07-05
Classification: B24B,B27B

Abstract:
1. A hand-held power tool, comprising a drive spindle ( 2 ) rotatable about a rotational axis (A) and provided at a free end thereof with a clamping flange ( 3 ) and a locking thread ( 4 ) having at least one thread undercut ( 8 ) formed between a first thread section ( 4 A) remote from the end side ( 4 C) of the drive spindle ( 2 ) and a second thread section ( 4 B) at the end side ( 4 C) of the drive spindle ( 2 ); and a locking nut ( 7 ) having a clamping surface ( 6 ) and an inner thread ( 9 ), the locking nut ( 7 ) being tightenable on the locking thread ( 4 ) for securing a disc-shaped tool ( 5 ) between the clamping flange ( 3 ) of the drive spindle ( 2 ) and the clamping surface ( 6 ) of the locking nut ( 7 ), wherein the thread undercut ( 8 ) has an axial length that corresponds to at least an axial length of the inner thread ( 9 ) of the locking nut ( 7 ).