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Les langues disponibles
Intended Use
The twist drill sharpener is intended to sharpen steel drill bits according to DIN
338, DIN 340, DIN 345, DIN 1869 and DIN 1897 (MODEL Type N). Carbide twist
drills must not be sharpened with this unit
Operation – Sharpening a Twist Drill
1. Fully lower the grinding stone. Turn the rotary switch (4) counter clockwise up
to the end in direction DOWN.
2. Insert the twist drill into the suitable drill guide (1). The exact sizes (Ø) of each
drill are shown on the cover (6) in centimetres and inches. Turn the twist drill
clockwise until you notice that the drill is engaged.
3. For switching on the unit, press the ON/OFF switch (5) in direction I. Turn the
rotary switch (4) in direction UP, until you hear a grinding noise.
Hints: With the rotary switch you can adjust the position of the grinding
stone. The further you turn the rotary switch in direction UP, the greater the
pressure will be. Do not turn the rotary switch too far up, as the grinding
stone will strike the housing.
4. Slightly pull the twist drill up and turn it through 180° (horizontally) and insert
it again unit it touches the grinding stone. Repeat the process until both
cutting edges of the twist drill are sharp.
5. Switch off the unit by pressing the ON/OFF switch (5) in direction 0.
Hints:
Badly damaged twist drills should first be coarsely
sharpened on a sharpening block.
Both cutting edges (b) must have the same angle to
the drill axis (a) and have the same length so that the
drill runs concentrically.
Control the grinding operation so that the angle
between the main and the transverse cutting edges
for a standard twist drill is 118°.
After operating the motor for maximum 3 minutes, allow the unit to cool down
for 7 minutes.
OPERATION
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