Joint clamps GMQ of die-cast aluminum have split clamping points with identical round or square cross-section that have been partially machined by cutting methods. They are comprised of two swivel clamps LMQ.
The clamping point bores are situated in a plane and are connected by the clamping joint to swivel by ± 90°, from parallel to perpendicular. They receive typically available construction tubes via multiple ribs in the cross-section of the bores.
At the screw points, hex socket cap screws or adjustable hand levers reduce the bore cross-section for clamping.
A hex socket cap screw or an adjustable hand lever at the clamping joint serves for locking the joint axis.
Adjustable hand levers are intended for repeated, tool-free clamping. Under the designation HSK, these are available separately for individual use and in other designs. Compared with the tool-operated hex socket cap screw, the clamping force achievable with an adjustable hand lever is lower due to the shorter lever length.