The Stiler magnetic jig is designed for precise knife setting and is equipped with a very accurate scale. It can be used for all diameters of the knife shaft without the need to disassemble it. The jig is packed in a wooden box. The jig is suitable for knife heads with a diameter of 75 to 125 mm The setting process is very easy and fast. All it takes is: Place the magnetic jig anywhere on the shaft Set the planned knife height Tighten the scale locking screw Loosen the knife screws Transfer the size set on the jig to the center of the knife, so that the magnets attract the knife, and the magnetized feet adhere to the shaft After setting, screw the knife, taking care that the knife screws are screwed from the inside to the outside Tighten the knife screws from the inside to the outside.