The eccentric lever can be adjusted to the best position by means of the serration. By removing the washer the eccentric clamp can also be used as an infinitely adjustable stop. MaterialBody Steel, case-hardened, blackenedStainless steel 1.4305, nickel-platedScrew Steel, hardened, blackenedStainless steel 1.4021, heat-treated, nickel-platedBall knob Thermosetting plastic PF 31, black, DIN 319