All components in this handle are built to last, comprising a black powder coated die cast zinc lever, blackened steel boss, ratchet and male threaded stud, plus steel spring. This clamping handle is delivered with a machined, allen key fixing button. The button is depressed to disengage the lever which allows the user to rotate the handle to the desired position, then re-engage the ratchet to clamp. Male Thread Adjustable Indexed Clamping Handle, Heavy Duty 92mm M10 32mm Thread