Global Machinery Company GTX24250 - Manual (Page 11)

11
Inserting and removing bits
This drill has a keyless chuck, which means that a chuck
key is not needed to secure a bit in the drill.
1. Open the chuck by holding
the rear section of the chuck
firm and rotating the front
section in a anti-clockwise
direction, sufficiently enough
to allow the drill bit required
to fully enter the jaws of the
chuck.
2. Ensure the drill bit is fully
inserted, so that the chuck
jaws grip the straight section of the bit.
3. Holding the rear section of the chuck firmly, rotate the
front section of the chuck clock-wise until the jaws
tighten on the drill bit. The front section of the chuck
needs to be tightened firmly to ensure the drill bit is
held securely.
4. To remove the drill bit, hold the rear section of the
chuck firmly and rotate sharply the front section of the
chuck in a anti-clockwise direction, sufficiently enough
to allow the drill bit to be removed.
Adjustable side handle
1. Turn the side handle clamp
knob (6) anti-clockwise
to loosen the collar fully and
slip it over the chuck (1)
onto the drill.
2. Adjust the position of the
side handle (5) to suit the
application and tighten the
side handle clamp knob (6)
to secure it in place.
Drilling
Drilling metals
• Always clamp sheet metal.
• Support thin metal with a block of wood to avoid
distorting it.
• Use a punch to mark the centre of the hole.
• Use a suitable lubricant for the material you are
working on,
USE: FOR:
Oil Steel
Turpentine or paraffin Aluminium
Do not lubricate Brass, copper or cast iron
Drilling plastics and plastic coated chipboard
• Use high speed drill bits
• See drilling wood below
Drilling masonry
• This drill is not designed for drilling masonry. Purchase
or hire a Hammer drill.
Drilling wood
• Clamp a piece of scrap wood to the back of your work to
prevent splintering.
All drilling operations
• Mark off the centre of the hole using a centre punch
or nail.
• Don’t force the drill, let it work at its own pace
• Keep the drill bit sharp.
• Reduce pressure, as the drill is about to break through
the item being drilled.