Clarke 6480231 Original Instructions Manual - Page 9

Browse online or download pdf Original Instructions Manual for Power Tool Clarke 6480231. Clarke 6480231 17 pages. Electric drill bit sharpener

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WARNING: THIS SHARPENER SHOULD ONLY BE USED TO SHARPEN HSS DRILL BITS.

CARBIDE, COBALT AND TITANIUM DRILL BITS SHOULD NOT BE SHARPENED USING

THIS TOOL.

1. Place sharpener on a flat, sturdy surface and plug in.

2. Put a single drill bit (HSS only) into the appropriate hole (3mm - 12mm).

3. Using the height adjustment knob, raise (clockwise) or lower (anti-

clockwise) the grinding stone until it touches the drill bit (see 'Adjusting the

Grinding Stone' on page 8).

NOTE: Do not raise the grinding stone too far as this may damage the

housing.

4. Turn the unit on.

• Exert a slight downward pressure

onto the bit and rotate the bit

back and forth about 20 degrees

while sharpening. Each hole is

fluted to help with the rotation.

• The bit must be kept in motion

whilst in the machine to avoid

uneven sharpening.

5. Turn unit off after approximately 5-10

seconds of sharpening.

• Examine the drill bit according to

the "Sharpening Hints" section below.

6. Ensure both sides of the drill bit are sharpened using the same amount of

time and pressure.

7. Repeat the above steps as necessary.

8. DO NOT run the machine for longer than 3 minutes at a time.

NOTE: Pre-treat heavily damaged bits by coarsely grinding on a

sharpening stone first.

SHARPENING HINTS

• If the tip of bit starts to turn blue, it is overheating. Reduce the

amount of pressure and sharpening time. Cool the bit in water

between sharpening cycles.

• If one edge is longer than the other, sharpen the drill bit a little more.

• If you are sharpening a broken (rather than blunt) bit and the time

required to restore the shape is too long, rough the bit into shape first

using a bench grinder.

Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]