Patent 7739932 was granted and assigned to Bosch (company) on June, 2010 by the United States Patent and Trademark Office.
A tool-holding device for an insert tool (14) equipped with an at least essentially disk-shaped hub (42), in particular for a hand-guided angle grinder (32) or a hand-guided circular saw, having a drive device (12) that includes a leaf spring unit (58) and is able to clamp the insert tool (14) in the axial direction (64).