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bit maintenance


1.when cutting steel, please ensure that sufficient amount of cooling and use metal cutting fluid.
2. Good rigidity of drill pipe and guide clearance can improve the accuracy of drilling and the service life of drill bit
3. Please make sure that the magnetic bridge between workpiece and smooth and clean.

4. the drill plate, the workpiece, drill large workpiece, please make sure that the workpiece of the firm.
5. drilling start and end of a feeding should be 1/3.
6. There was a number of fine pinky for drilling materials, such as cast iron, cast copper, can not use coolant, and use compressed air to help chip removal.
7.But please clear the scrap iron on the winding in the drill, to ensure smooth chip removal.

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