- 11 -
Overall view(Fig. 1):
1. Swivel arm
2. Clamp screw for drill shank
3. Positioning prism
4. Knurled screwwithspring pressure hold-
down
5. Grinding wheel
6. Dressingdevice for grinding wheel
7. ON - OFF switch
8. Clamping prism
9. Indexknobfor rapid length
adjustment
10. Drill feed spindle
11. Spannertoclamp the spiral drill
12. Clamp for drill guide
13. Adapter for drill with less than3mm in
diameter
14. Allenkeyfor adapter
Description of machine:
With thePROXXON drill grinder BSG 220you
canperfectly grindall spiral drills with adiameter
between3and13 mm andastandardangle
(118°, DIN 1412). Thedrill may be ofHSS, CrV
or WS (toolsteel). Withtheswivelmovement
around two axes during theg
rinding process the
correct"relief" for optimal drilling is achieved.
With the integrated dressing stone the special
fused aluminagrinding wheel can be perfectly
cleaned and smoothened afterlongeruse.
Scope of delivery:
1pcs. drill grinder
1pcs. sparegrinding wheel
1pcs. adapter for drills <ø3mm
1pcs. clampingbarcpl.
1pcs. Allenkeysmall
1pcs. Allenkeylarge
Technical data:
Motor:
Voltage: 220 -240V, 50 Hz,~
Power:85Watt
Speed:8000 rpm
Noisedevelopment: <70dB(A)
Degree of protection II
device
Machine:
Grinding wheel:Special fused alumina,
50x13x27 mm
Dimensions: 290x200 x110 mm
Weight:approx. 1.7 kg
Only for use in
dry environments
!
Donot dispose of the
machine with your
normalhousehold refuse!
Working range:
Drill diameter: 3-13mm
Length ofdrill:approx. 55 -170 mm
Fastening thedrill grinder:
Before starting work fastenthedrill grinderwith
twowood screws to a stable wooden board. The
base plate of the machine is provided with the
necessary bores. The woodenplatecanthenbe
fastened to a table with screw clam
ps.
Operation:
Before grinding:
Note!
Broken off drillsmustbemanually pre-
ground on abuffing machine.
Attention!
Only correctly grounddrills will achieve
perfectresults. Therefore pleaseobservethe
special information andtables in thismanual.
Fig.2showstheessential drill data:
Main cuttingedge (1)
Relief angle (2)
Chamfer(3)
Chisel edge (4)
Chip channel(5)
approx. 80 - 170 mm
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