When the limit management of processing quantity is adopted, the above discrimination contents shall be integrated and the discrimination criteria shall be set. Method for sharpening drill bit When re-sharpening the drill, it is better to use a special machine tool for drill sharpening or a universal tool grinder, which is very important to ensure the service life and machining accuracy of the drill. If the original drill type is in good processing condition, it can be reground according to the original drill type; if the original drill is defective,DHD Drill bit, the rear shape can be properly improved and the chisel edge can be grinded according to the use purpose. Attention shall be paid to the following points during sharpening: 1. Prevent overheating ? Avoid reducing the hardness of the drill bit; 2. Damages on the drill bit shall be (Especially the damage on the edge surface of the blade) is completely removed; 3. The drill pattern shall be symmetrical ； 4. Be careful not to damage the cutting edge during sharpening. , and remove the burrs after sharpening; 5. For cemented carbide drill bits ? The sharpening shape has a great influence on the performance of the drill. The drill shape when leaving the factory is the best drill shape obtained through scientific design and repeated tests. Therefore, the original edge shape should be maintained when re-sharpening. This article is from Momo's WeChat public account [UG NC Programming]. You can get the tutorial after paying attention to it. Return to Sohu to see more Responsible Editor:. wt-dthtools.com