Design and handling of the adjustable clamping levers GN 603 meet the requirements of the Ergostyle® product family. In addition, like all adjustable levers, they are preferably to be used when the clamping range is limited or a certain clamping position is desired. The threaded insert is detachably connected to the handle by a notch toothing. The release button allows effortless snap-out. However, this design is limited to applications where disassembly of the lever is not required when screwing in.