2.Start drilling with slow speed and gradually increase speed as drill cuts. The harder the material, the slower the speed required. The softer the material, the faster the speed.
3.When drilling a large hole, it is easier to first drill a smaller hole and then enlarge it to the required size.
4.The use of a lubricant, such as oil, on the drill point helps keep the bit cool, increases drilling action and prolongs drill bit life.
TROUBLESHOOTING GUIDE
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