Hand-held milling machine

In a hand-held milling machine for the processing of workpieces (41) and especially for the trimming of workpiece edges (40), including

• (a) at least one power driven rotary cutting tool (9, 10);
• (b) a machine support (3) relative to which the cutting tool (9, 10) protrudes on the side facing an associated workpiece, said support (3) serving to support the hand-held milling machine on the associated workpiece (41) being processed;
• (c) a screw-type clamping mechanism having one clamping section (6, 18) associated with the cutting tool (9, 10) and the machine support (3), said clamping mechanism having at least one actuating element (16, 21) serving to move the cutting tool (9, 10) and the machine support (3) relative to each other through a relative rotary movement of the clamping sections (6, 18) on each side around a drive spindle axis (13), in the direction of projection of the cutting tool (9, 10) relative to the machine support (3), said clamping sections (6, 18) on the two sides being positioned opposite each other in a radial direction relative to the drive axis (13);
• (d) a releasable tensioning device (35) acting in a radial direction relative to the drive axis (13) whereby the radially inward (inner) clamping section (6) can be brought into contact with the radially outward clamping section (18), allowing the two clamping sections (6, 18) on both sides to be secured against any relative rotational movement around the drive axis (13), the tensioning device (35) including an annular tensioning element that is at least in part radially positioned outside the outer clamping section (18);
• and
• (e) an actuating device operable to tighten and loosen the tensioning element in the circumferential directions, whereby tightening of the tensioning element can bring the outer clamping section (18) into contact with the inner clamping section (6).