1. Select the appropriate drill bit or drill according to the material being drilled.
2. Adjust the appropriate speed according to the material being drilled. If the speed is too fast, the bit will heat up and the low melting point material will soften. If the speed is too slow, the soft material will stick.
3. Determine the number of passes of the drill according to the depth of the hole drilled and the hole diameter.
4, the drilling machine is a high-speed rotary feed, need to pay attention to safety protection.
5, pay attention to ensure the sharpness of the drill bit, you need to grind the drill bit regularly or replace the drill bit.
6. Regularly refueling the drill shaft.