9
TOOL OPERATION (cont.)
Keyless Chuck
A keyless chuck has been provided with your drill to allow for easy installation and
removal of bits. The chuck is divided into two parts, the rear is called the collar and
the front is the body. To open and close the chuck; grasp and hold the collar of the
chuck with one hand and rotate the chuck body with your other hand. The arrows
on the chuck indicate which direction to rotate the chuck body in order to GRIP
(tighten) or RELEASE (unlock) the drill bit.
WARNING: Do not hold the chuck body with one hand and use power of the
drill to tighten or loosen the chuck jaws. The chuck body could slip and your
hand could come in contact with a rotating accessory. This could cause an
accident resulting in personal injury.
Installing Drill/Driver Bits
• Remove battery from the drill.
• Open or close the chuck to a point where the opening is slightly larger than the
drill bit you intend to use.
• Insert the drill bit into the chuck ensuring the end of the drill bit does not touch
the screw inside the chuck.
• Tighten the chuck onto the drill bit as described above (Keyless Chuck).
Removing Drill/Driver Bits
• Remove the battery from the drill.
• Loosen the chuck as described above (Keyless Chuck).
• Remove the drill bit from the chuck.
Note: Do not handle drill bits without gloves as drill bits and other accessories are
sharp and can cause a personal injury.
General Hints for Drilling in all Materials
• Always use sharp drill bits.
• Mark the place where you would like the hole to be drilled.
• Commence with a slow rotation speed to start the hole.
• Reduce your pressure on the tool when the drill bit is about to break through
the material.
Metal Drilling
• Support thin material with a wooden plate.
• Use a punch to mark the position of the hole.
• If drilling a large hole use a small drill at first to establish a pilot hole then use
the required large size drill bit.
• Use only HSS (high speed steel) drill bits or those recommended for metal use.
• When drilling into iron or steel, use a cooling lubricant such as thin oil. With
aluminium, use turpentine or paraffin. With brass, copper and cast iron, use no
lubricant but withdraw the drill regularly to assist cooling.
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