How do you determine the speed of the drill? Is there any standard?
The diameter of 2mm twenty thousand to 40mm 32 is mainly to see the diameter of iron chip is not sent out only primary coke is not a piece of burning speed is too high to slow down a block that feed enough that need grinding head shaking feed you attached to a long amount of iron is the thickness of it feed processing when you need cooling water;
Different diameter of the drill bit, drilling speed, diameter smaller, higher speed, otherwise low;
Large hole processing speed is not too fast, too fast, easy to make the head color (coke), resulting in turn annealing, eventually scrapped;Small rotor speed should be fast forward to the amount of slow, fast, easy to break, turn around, pay attention to crumbs.
