Hand machine tool apparatus and method with a hand machine tool device

It is a hand machine tool device, in particular a router device is proposed, having at least one measuring unit (10a; 10b) which, which leads to a measurement of at least one machining tool (12a;; 12b) is provided, and that at least one detection unit (14b 14a) is provided in at least one operating state for measuring the machining tool (12a; 12b) at least one geometry parameter of the machining tool; optically detecting (12a 12b).