Does the dry drilling machine need to grind the tap?

Yes Tapping of dry drilling machine is inseparable from the tool of tap. The method of machining internal thread with tap is called tapping, and tap is a special tool for tapping. Tapping is to screw the tap into the bottom hole to be drilled with a certain torque to process internal threads. The bottom hole must be drilled before tapping. Because when tapping, the cutting edge of the tap not only cuts the metal, but also rubs the workpiece data. The result of kneading is that the tap may be stuck, and the workpiece may be broken, broken and twisted. Therefore, the diameter and depth of the thread bottom hole should be determined according to different data to avoid damaging the tap.