1. When drilling steel parts, please ensure sufficient cooling capacity and use metal cutting fluid.
2. Good drill pipe rigidity and guide rail clearance can improve drilling accuracy and drill bit life.
3. Please ensure the flatness and cleanness between the magnetic base and the workpiece.
4. When drilling thin plates, reinforce the workpieces. When drilling large workpieces, ensure the stability of the workpieces.
5. At the beginning and end of drilling, the feed rate shall be reduced by 1 / 3.
6. For materials with large amount of fine powder during drilling, such as cast iron, cast copper, etc., it is not necessary to use coolant, but use compressed air to help chip removal.
7. Please remove the iron chips twined on the drill body in time to ensure the smooth chip removal.
