Universal Knife Sharpener Fixed Angle Knife Grinding Machine Metal Graver Faceting Machine Faceted Manipulator Jewellery Making Tools Instructions: 1. Put the blade into the collet hole and tighten the tool fastening screw. 2. Rotate the chuck to zero (with the fine adjustment of the axial angle): For example, for a square bar, adjust the axial angle indexing plate to 9, and then place one surface of the square bar and the grinding surface flat. Tighten the collet retaining screw. (The round bar does not need to be zeroed for the first grinding, but the subsequent grinding needs to be zeroed) 3. Rotate the axial indexing plate to the first grinding surface. (The example is a tool that grinds 120 degrees, so the first grinding surface is 60 degrees) 4. Adjust the radial angle to the pre-grinding angle, adjust the height limit ring and the height fine adjustment ring, so that the blade just touches the grinding disc or oilstone. 5. Lower the height adjustment ring a little, let the angle limit clip and the radial limit rod have a certain distance, and then start grinding. 6. Grind until the limit clip contacts the limit rod, and check the grinding amount of the blade. Repeat steps 5 and 6 until the required amount of grinding is reached on this side. 7. Tighten the height adjustment ring. 8. Adjust the axial indexing plate to the next angle between the grinding angle of the sample and the grinding amount, and start grinding until the predetermined grinding amount is reached. Repeat steps 3-8 until all sides of the tool meet the predetermined grinding requirements.