Dremel Lite 7760 Operating/Safety Instructions Manual page 17

1600A01A91.qxp_7760 3/4/19 1:55 PM Page 17
material is to practice for a few minutes
on a piece of scrap, even after referring
to the chart. You can quickly learn that a
slower or faster speed is more effective
just by observing what hap pens 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 reduce the speed slight ly
to get the optimum working speed.
Some rules of thumb in regard to speed:
1. Plastic and other materials that melt
at low temperatures should be cut at
low speeds.
2. Polishing, buffing and cleaning with
any type of bristle brush must be
done at speeds not greater than
15,000 RPM to prevent damage to
the brush from bristles flying toward
operator.
3. Wood should be cut at high speed.
4. Iron or steel should be cut at high
speed. 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
Operating Speeds
Use only Dremel®, high-performance accessories.
various speeds, 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
performing as you think it should.
Perhaps you should be using a different
accessory, and perhaps an adjustment
in speed would solve the problem.
Leaning on the tool does not help.
Your Dremel Lite 7760 can be used with
all of the Dremel accessories, except
router bits. While the tool will work with
cut-off wheels, the reduced speed of
this tool will not allow them to perform
optimally. They can be used to cut soft
materials such as wood or plastic, but
cutting metals is not recommended.
Let speed do the work!
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