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H3117 Mini Grinder
-5-
High RPM Uses
Higher RPM settings are best for general
carving, cutting, routing, and grinding. The
grinder will perform more work at faster
RPM settings.
Low RPM Uses
Lower RPM settings are best for grinding
and cutting materials that have low melting
points. Plastics in particular will often melt
from the extreme heat generated by high
speed bits.
Low RPM settings are also ideal for polish-
ing and buffing with the felt accessories
included.
Use low RPM settings when working
with plastics or other materials with
low melting points. Melted plastics
can liquefy, be thrown into the air,
and stick to the operator, causing
serious personal injury.
The Model H3117 is best suited for high
RPM, low torque applications. Most opera-
tions performed with the grinder will per-
form best at the higher RPM settings; how-
ever, slower RPM settings are ideal when
working with plastics that melt easily.
Always test the bit and RPM combination
on a scrap piece of material similar to the
workpiece. Trial and error is the best way
to determine the ideal setup.
To use the grinder:
1. Grasp the grinder with a secure grip.
2. Turn the Power Switch to the ON “O”
position.
3. Adjust the Speed Dial to change the
RPM. “1” is the lowest RPM and “Max”
is the highest RPM. The best speed for
each job can vary.
Using The Grinder
Failure to wear safety glasses while
operating the grinder could cause
serious personal eye injury.