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Model H6155 Rotary Mini Grinder-6-
OPERATIONS
Using The Grinder
The Model H6155 is best suited for high
RPM, low torque applications. Most opera-
tions performed with the grinder will per-
form best at 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 lever to change the
RPM.
4. Firmly grasp the grinder and ease it
against the workpiece using light pres-
sure.
Failure to wear safety glasses while
operating the grinder could cause
serious personal eye injury.
Installing Bits
The Model H6155 uses bits and cutters
with a
1
⁄8" diameter shaft. See the Grizzly
catalog or website for a complete listing of
available bits and accessories.
To install a bit:
1. Unplug the tool from the power
source!
2. Depress the collet lock shown in Figure
2 and loosen the collet nut. The collet
lock will engage during rotation, pre-
venting further rotation of the collet nut.
DO NOT completely remove the collet
nut from the shaft.
DO NOT use bits or cutters with a
cutting surface larger than 1". The
bit could break apart under the
stresses of high speed use caus
-
ing serious personal injury.
3. Insert the end of a bit into the collet.
At least
1
⁄2" of the bit shaft should be
mounted into the end of the collet.
4. Rotate the collet nut while depressing
the collet lock to secure the bit. Only
tighten 1/3 of a turn with the collet
wrench.
Figure 2. Collet lock
Collet Lock