14
Correct Grinding
Grinding Disc
View from above
Do not swing!
swing!
4. Loosen the wing nut (8) in the foot of the drill bit sharp-
ener and shift the device in order to achieve a dis-
placement of the drill point of approx. 0.5 mm from the
grinding disc. To do this, the tray tip (14) must be pre-
cisely vertically in front of the grinding disc.
5. Slightly loosen the control screw (5), switch on the
grinding machine and push the drill bit forward by turn-
ing the adjustment screw (4) until the bit touches the
grinding disc. Then swing the entire device (hold at the
feed slide)
to the right
. This will automatically create
the correct cut.
The swing axis (11) is not exactly situated in the centre
of the bit tray (2). This „imprecision“ effects right edge
grinding and relief grinding. Therefore you have to
swing the swing axis (11) to the right only.
Depending on the degree of wear of the drill bit, push
the drill bit further forwards by using the adjustment
screw (4). However, this should be done slowly in order
to prevent the drill bit from overheating and becoming
annealed soft.
