How to sharpen tungsten carbide tools:

1. People should stand on the side of the grinder to prevent the fragments from flying out and injuring people when the grinding wheel breaks;
2. Open the distance between the two hands holding the knife, and clamp the waist with both elbows to reduce the vibration when sharpening the knife;

3. When sharpening tungsten carbide tools, the turning tool should be placed in the horizontal center of the grinding wheel, with the tool tip slightly tilted upward by about 3° to 8°. After contacting the grinding wheel, the turning tool should move horizontally in the left and right directions. When the tungsten carbide turning tool leaves the grinding wheel, the turning tool needs to be lifted upward to prevent the sharpened blade from being damaged by the grinding wheel;

4. When grinding the flank surface, the tail of the tool holder is deflected to the left by an angle of the main declination angle; when grinding the secondary flank surface, the tail of the tool holder is deflected to the right by an angle of the minor declination angle;
5. When sharpening the tool tip arc, usually hold the front end of the turning tool with your left hand as the fulcrum, and rotate the tail of the turning tool with your right hand.