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790007117GBNLF
790007119GBNLF
GB
3.3 How to grind the web of drill
1. Turn on the power.
2. Insert the holder unit into the grind stock. The slot will match with the pin. Let the
drill reach diamond wheel smoothly. Hold the clamping holder when turning.
3. Grind the drill by moving right and left until the grinding noise is gone.
4. Take out the holder unit and turn at 180°. Insert again like step 3 and complete
the web sharpening process.
Caution:
•
Hold and turn the clamping holder to avoid mis-grinding. Hold drill or clamping
nut when turning may result in uneven surface.
•
To grind different angle you shall adjust angle indicator before insert.
3.4 How to grind center point of drill
1. Insert the holder unit into the grind stock and match with the pin.
2. Turn the holder unit right and left slowly until the grinding noise is off.
3. Take out the holder unit, turn at 180° and repeat step 2.
Caution:
•
Drill under 4 mm no need to grind center point.
3.5 How to change the diamond wheel
1. Loosen the screw on the wheel cover.
2. Open the cover and loosen the screw which locks the grinding wheel.
3. Change the wheel. Make sure both screws are in place and fixed.
Caution:
Don't plug in the power before the wheel cover is closed.
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