●Clamping lever is made from high quality alloy and surface is finished by power coating or blackening for durability and rust protection ●There are four different thread length for these M10 clamping levers from which you can choose the proper one to meet your need ●By pressing down on the handle button the serrations are disengaged and the handle can then be turned to the desired position ●The inside return spring automatically engages the teeth, the handle can then be fixed in original position ●The classic element find use in machine construction, tool making and plant construction, heavy-duty applications