U se a short trial on a test piece to determine the
optimum rotational speed range for working on
zinc, zinc alloy, aluminium, copper and lead.
U se the low speed range for working on plastics
and low-melting point materials.
U se high speeds on wood.
U se the medium speed range for cleaning,
polishing and buffing.
Setting the appropriate speed
Symbols
Material
Rotational
speed
control
1
Plastics and low melting
1–3
point materials
Stone, Ceramics
4–5
5
Softwood, metal
Examples of appropriate tool selection Function
Function
Drilling
Milling
Engraving
Polishing,
derusting
CAUTION!
Use only the lightest
contact pressure of
the tool on the work-
piece.
Cleaning
Grinding
Cutting
Accessory
HSS drill
12
Milling bits
21
Engraving bits
20
Metal brush
16
Polishing wheel
14
Plastic brush
19
Metal brush
16
Grinding wheels
,
15
grinding bits
22
Cutting discs
17
The following information shall be considered as
recommendatory only. Learn by practical experience
which tools and settings are the best for the materi-
als you work with.
Hardwood
6–7
Steel
Max
Application
Drilling wood (see Fig. C)
Various tasks, e.g. hollowing out, gouging,
shaping, grooving or slotting
Markings (see Fig. D)
Derusting (see Fig. E)
Working on various metals and plastics, in
particular noble metals like gold or silver
(see Fig. F)
E.g. cleaning complex plastic housings or the
area around a door lock
e.g. derusting (see Fig. E)
(The metal brush is softer than steel)
Grinding of stone, precise tasks on hard materials,
such as ceramics or alloy steel (see Fig. G)
Cutting metal, plastic (see Fig. H)
Operation
GB/MT
57