Zinc die-cast adjustable levers with steel components. GN 303 adjustable hand levers with push button have proven to be ideal wherever parts have to be clamped in a confined space or in a particular lever position. The insert is connected to the lever via serrations which can be easily be disengaged. Pulling the lever upwards, disengages the serrations, allowing it to be swivelled to the ideal clamping position. When releasing the lever, the serrations automatically re-engage. The releasing button is a design element and allows for effortless release action. However, this design is limited to applications that do not require the lever to be disassembled. Screw for push button: Stainless steel, European standard 1.4305. Black smooth nylon plastic push button. Orange lever with smooth finish.