Patent ID: 6865813

Claim:
A tool comprising: a working element having a working section at one end thereof and having at least two flat holding sections at another end thereof, said holding sections being configured as oblong holes arranged spaced apart from each other extending toward said other end and opening thereto; a holder comprising a main body and a mounting plate releasably attached to said main body, said holder having a mounting opening at one end thereof for attaching said holder to a drive shaft of a power tool, and having a receiving section at another end thereof for receiving said working element; a plurality of securing elements engaging said main body and said mounting plate releasably and extending through said holding sections for clamping said working element between said main body and said mounting plate; wherein said holder is made of a plastic material, which is reinforced by a metal core extending therein; and wherein the core is designed as a substantially plane plate reinforced by at least one projecting crimped portion.