Drilling Tips |
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Know your worksite: Only drill as deep as necessary. Check behind walls for wires, other electrical hazards, or plumb- ing.
Ensure the safety of the workplace: Clear the work area of all parts and debris that may cause injury by flying objects. Securely fix the object to be drilled or fas- tened in a vise or clamp to avoid injury. Do not attempt to hold workpiece by hand.
Avoid overloading the drill: Use sharp drill bits and avoid applying excessive pressure to the drill. If the speed drops abnormally, decrease pressure immedi- ately. If the bit stops abruptly or becomes blocked, release the trigger at once. Reverse the direction to free the drill bit.
Avoid overheating the drill bit: Use sharp bits that are appropriate for the workpiece, lubrication, and an oscillating motion when drilling deep holes to allow chips to clear and the bit to cool off.
Speed and pressure: Use slow speed when starting to drill and when drilling in hard material. Only use as much pressure as needed. Too much pressure and speed can cause the bit to overheat. Too little pressure can allow the bit to spin in the hole, dulling the drill bit.
Drilling metal: Use a center punch to make a dent at the center of the desired hole. Drill using a carbide bit, slow speed, and firm pressure. Use lubrication to pre- vent overheating the bit.
Operating this equipment has the potential for flying debris to cause eye injury. Always wear safety glasses or goggles when operating equipment. Everyday glasses or reading glasses only have impact resistant lenses, they are not safety glasses. Be certain the safety glasses you wear meet the appropriate standards of the American National Standards Institute (ANSI).
Performing drilling operations:
1.Install the correct sized drill bit.
2.Set the clutch to drill and set the direc- tion to clockwise (forward).
3.Place the drill bit firmly against the workpiece, start the drill slowly and gradually increase speed, while apply- ing pressure to drive the drill into the workpiece.
4.When drilling deep holes, occasionally pull the drill bit almost all the way out of the hole to allow chips to clear and the drill bit to cool.
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