Patent 7207873 was granted and assigned to Bosch on April, 2007 by the United States Patent and Trademark Office.
A hand power tool has a disk-shaped tool, and a clamping device for clamping the tool, the clamping device including at least one flange and a clamping unit for clamping the tool to the at least one flange and passing through the tool, the clamping unit and the at least one flange being configured on a key-end-keyhole principle, so that after passing axially through one another and subsequently being rotated counter to one another, the clamping unit and the at least one flange axially fix one another at least in one axial direction.