Finish: nickel and chrome-plated. Material: VANADIUM-EXTRA. Pin finely ground and polished. The drift pin is positioned with the guide sleeve pushed forward. When driven, the pin is supported by the sliding sleeve, thus a......Finish: nickel and chrome-plated. Material: VANADIUM-EXTRA. Pin finely ground and polished. The drift pin is positioned with the guide sleeve pushed forward. When driven, the pin is supported by the sliding sleeve, thus avoiding breakage of the pin. without guide sleeve Spare parts No. 3659 D = spare drift pins When ordering, please state diameter