Sharpening Of Drills - Westfalia 85 93 52 Bedienungsanleitung

Sharpening of Drills

An appropriately sharpened drill is characterised by a spiky point in the middle
of the drill tip, lip with two sharp and identically sized sides, two back edges
that are slightly lower than the front edge of the lip.
If the drill does not look like as specified above, it has to be sharpened. Rough
sharpening on a desk grinder followed by using the multi task sharpener is
recommended for sharpening of skewed or very blunt drills.
1. Install the adapter for sharpening drill bits (e) on the multi task sharpener.
2. Take the vice (i) off the holder on the adapter and insert the drill (g)
(figure 1a).
3. Tighten the vice slightly so that the drill in the vice can still be moved a bit.
4. Insert the vice into the notch at the bottom on the left side of the adapter
so that the drill point faces to the v-guide (j) in the notch (figure 1b).
5. Move the drill to the very front of the v-guide (figure 1c).
6. Turn the drill so that it fits the sides of the v-guide.
7. Lift the v-guide and make sure the vice sits at the bottom of the notch.
8. Tighten the vice (figure 1d).
9. Lift the v-guide and remove the vice with the drill bit.
10. Put the vice into the vice holder that is located in the centre of the adapter
(figure 1e).
11. Use the on/off switch (b) to put the multi task sharpener into operation.
12. Pan and move the vice holder several time slightly from one side to the
other (figure 1f).
13. Remove the vice and turn it 180° so that the back is facing up (figure 1g).
14. Pan and move the vice holder several times slightly from one side to the
other (figure 1f). Do not apply too much pressure as the drill could get
overheated and damaged.
15. Make sure the drill is sharpened properly and corresponds to the three
characteristics named above (figure 1h).
16. Switch off the multi task sharpener.
Operation
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