How to Use Taper Point Drill Bit - Bomi Tools
2020-10-9 · First, turn on the magnetic seat switch and then turn on the motor switch. When the motor is running, turn on the coolant switch. When the drill bit contacts the steel plate, feed slowly. After drilling for about 1-2mm, feed at the normal speed. (4) End of drilling: turn off the motor and wait for the spindle 1.
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