Craftsman 572.610530 - Manual (Page 5)

The Settings for Approximate Revaiuiions Per
Minute Rotary Toof Variabie Speed Model
672610530
Switch Setting Speed Range
1 4,500- 8,000 RPM
2 9,000-11,000 RPM
3 12,000-17,000 RPM
4 18,000-24,000 RPM
5 25,000 - 30,000 RPM
NOTE: Speed is affected by voltage
changes. A reduced incoming voltage wilt
slow the RPM of the tool, especially at the
lowest setting,. If your tool appears to be
running slowiy increase the speed setting
accordingly.
The point to remember is this; You can do the
great majority of work with the single speed at
its regular speed of 2S.OOO RPM But for
certain materials and types of work, you need
slower speeds ~ which Is the reason the
variable speed models were developed
To aid you in determining the optimum
operational speed for different materials and
different accessories, we have constructed a
series of tables that appear on page 5 By
referring to these tables, you can discover the
recommended speeds for each type of
accessory Look these tables over and
become familiar with them,
Ultimately, the best way to determine the
correct speed for work on any material is to
practice for a few minutes on a piece of scrap,
evert after referring to the chart You can
quickly learn that a slower or faster speed is
more effective just by observing what happens
as you make a pass or two at different speeds.
When working with plastic, for example, start
at a slow rate of speed and increase the speed
until you observe that the plastic is melting at
the point of contact Then back the speed off
slightly to get the optimum working speed
Some nilfis of thumb in regard to speed:
1 Plastic and materials that melt at low
temperatures should be cut at low speeds.
2, Polishing, buffing and cleaning with a wire
brush should be done at speeds below
15,000 RPM to prevent damage to the
brush,
3 Soft wood should be cut at high speed
4 Iron or steel should be cut at top speed il
using tungsten carbide accessory, but at
slower speeds if using high speed steel
cutters If a high speed steel cutter starts to
chatter — this normally means it is running
too slow
5 Aluminum, copper alloys, lead alloys, zinc
alloys and tin may be cut at any speed,
depending on the type of cutting being
done Use paraffin or other suitable
lubricant on the cutter to prevent the cut
material from adhering to the cutter teeth
Increasing the pressure on the tool is not the
answer when it is not cutting as you think It
should Perhaps you should be using a
different cutter, and perhaps art adjustment in
speed would solve the problem. But leaning on
the too! seldom helps
QDIPC
111 QcTTIlk||^Q
* Speed for light cuts, caution burning on deep grooves.
O» Cod»# OC 1 1 t
Dependifig on cutting direction, relative to grain.
STOCK
NUMBER
SOFT
WOOD
HARD
WOOD
LAMINATES
PLASTIC
STEEL ALUMINUM,
SRASSi ВТО»
SHELU CERAMIC
STONE I
CaLASS
HIGH SPEED CUTTERS
53101 5 5 1 3 2 4
25014,53102 5 3 2 1-2 2
26012,53070 5 5 2 3 5
53103. 25011 5 3 2 2 2
2S008 5 5 2 1-2 1-2
2S0l8 4 2 I 1-2 2 2
SMALL ENGRAVING CUTTERS
53074,53075 5 5 1 4 ! 4 I 3 I
53076 5* 5* ! 3* i 4 i 2 i
RUBBER POLISHING POINT
25034 1................................. 1.......... 1 ......................t... 2..............1 1 i 1 ^
CUTTING ACCisSORIES—SEE WARNING PAGE 7
«íbU-cO 5 5 j
25Ô24, 53000 S
HIGH SPEED ROUTER BITS
3 3
531 ОТ, 53100,
53111, 53095, 53096
3 2*
53090, 63091 5 5*
53092 5 2*
ALUMINUM OXIDE GRINDING STONES
53078 1 3 1-3
1 1-2 1-1
2504Э, 25046 1 1-2 1-1
26057 1 1 1-1
2S0S8 1 1 1-1
SILICON CARBIDE GRINDING STONES
53079, 53080 1 j I 2 ! 1 j 2 I 2
25062 1 - 2 1 2 1 1 - 2
25063 I — —p 1 :¡ 1 i............................................................ 2................... 1....... 1..........
TUNGSTEN CARBIDE CUftERS
S3071, 52072, 53104 4 4 1 2 3
5 5 1 2 3
Page 5