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electric drill 
Portable electric tool using variable-speed rotation to pierce holes and to drive drills and bits.
jaw
The parts of the chuck that grip the tool to keep it firmly in place.
plug
cable
pistol grip handle
Part shaped like a pistol grip so the wrist remains straight while holding the tool.
auxiliary handle
Tubular handle providing a firm grip and stabilizing the tool while drilling.
chuck
Device with jaws for attaching the bit or drill to the tool.
cable sleeve
Protective casing around the cable to avoid twisting and prevent wear.
trigger switch
Connection mechanism for starting or stopping the tool by squeezing with the finger.
switch lock
Device locking the switch in position to keep the saw working for a prolonged period.
housing
warning plate
Plate providing certain safety precautions to avoid injuries caused by misuse of the tool.
nameplate
Plate showing the name of the manufacturer, the serial number of the device and certain technical characteristics (tension, power, etc.).
chuck key
Part for tightening and loosening the chuck’s jaws.
