Category:Power drills

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Tool Species
Power drills

A tool species is a logical grouping of tools based on similarity of function, use, and safety.

Asylum Tool Species Info
To use any of the tools listed on this page, you are required to complete the testing program described here. You should get training or equivalent experience at the Asylum or elsewhere before testing.
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This document is an internal Artisan's Asylum training document and is provided "as is", to be used as a reference only. Use of this document for any purposes other than as reference material (i.e., for the purposes of training and testing users on tools or equipment by other commercial entities or individuals) is not advised. In no event shall the authors of this material, or Artisan's Asylum, Inc., be liable for any claim, damages, or other liability whether in action or contract, arising from, out of, or in connection with the use of the information in this document for training, testing, or on-going safe use of fabrication equipment. Please consult your own lawyers and subject matter experts if you are looking to develop your own safety curriculum for fabrication equipment operation. Tool operators are responsible for their own safety, including reading and understanding the owners manual for this equipment and all of the warnings it contains.



Personal Protective Equipment

  • Standard shop personal protective equipment (safety glasses, no long hair, no flowing clothes, etc.) are required

Safe Operation

  • Always drill into workpieces that are clamped or fixed in place
  • Keep both hands on the drill, and neither hand on or behind the workpiece
  • Install bits into the drill by turning the chuck barrel counterclockwise (looking at the drill from the front) to open the jaws, and clockwise to tighten the jaws.
    • Tighten the chuck enough to feel it click once.
    • DO NOT open or close the chuck by running the drill and holding the chuck in your handle
  • Forward rotation is accomplished with the reverse switch to the left; reverse rotation is accomplished with the reverse switch to the right
  • Clutch settings should be adjusted (higher number meaning higher allowable torque) based on the torque required to drive screws without stripping them
  • Drill mode should be used for drilling, screw mode for light-duty screwdriving, and hammer mode only for drilling masonry
  • Speeds should be selected appropriately to the task being accomplished
    • “1” should be used for large (>1/2”) bits, drilling into steel, or driving large screws
    • “2” should be used for medium sized bits (1/4” to 1/2”) drilling into wood or metal, and for driving most screws
    • “3” should be used for drilling with small bits (<1/4”) into wood
  • Continue running drill while backing out of a drilled hole
  • DO NOT exert side pressure on drill bits to widen holes
  • Use appropriate cutting fluids while drilling into metals

Power Screwdriving

Size #2 Phillips screws are probably the most common, and also the most difficult to drive successfully. Apply firm downward pressure and pull the trigger gradually. As the screw begins to turn, you can increase speed. If the bit slips out of the screw head and spins without driving the screw, stop and reset. Otherwise the bit and screw will be rapidly destroyed.

Types of Drills

  • Corded drills are best for large holes (e.g. with hole saws) and drilling steel
  • Cordless drills are good for a variety of tasks
  • Impact drivers are for driving threaded fasteners, such as wood screws, lag screws, and bolts

Allowable Materials

  • No materials restrictions, but drill bits have limitations. For example, spade and forstner bits work only on wood.

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