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G8601 Mini Grinder Kit -6-
OPERATION
Inserting Attachments
Your kit comes with a large variety of dif-
ferent attachments ranging from grinding
stones, sanding discs and sleeves, buffing
pads and carving tools. There are two dif-
ferent collet sizes,
7
⁄64" and
1
⁄8" diameter.
Some of the cutting wheels, polishing tips
and other accessories need to be attached
or inserted into another shaft or mandrel in
order to be used. If you are using one of
these, first thread the accessory onto the
shaft.
Depending on the accessory you select to
use, match the collet to that accessory.
You can do this easily by slipping the col-
let onto the shaft of the accessory and
choose the one with the closest fit. Insert
the collet into the end of the grinder shaft,
then thread the collet nut onto the shaft.
See Figure 1. Next insert the shaft of the
accessory into the collet. Tighten the collet
nut, first by hand until it is snug.
Now push the shaft lock button down while
turning the shaft until you feel the lock
snap into place. Keeping the button
depressed with one finger, take the sup-
plied collet wrench and do a final tightening
of the collet nut. Do not apply excessive
force, just enough to keep the accessory
from turning while you are applying it to the
workpiece.
Fig 1. Using bit extension.
Shaft Lock Button
Collet Nut
Collet
OPERATION
For most uses it is helpful to grasp the tool
much like you would a pencil. This will
allow the finest control of the tool. Before
starting on your actual workpiece, practice
a similar action (drilling, grinding, sanding,
carving, polishing) on a scrap piece to get
the feel of the forces the tool will generate,
and the force you need to apply to achieve
the desired result.
During this practice, determine which
speed setting will give you the best result.
There is a switch just above the ON/OFF
switch which selects the speed. There are
four speed settings available - 6500,
10700, 14000, and 22000.
For most jobs the grinder can be used at
the highest speed. Some materials melt at
lower temperatures and should be cut at
lower speeds to generate less friction and
heat. Hard materials like iron, steel or
stone should generally be worked on using
the higher speeds.
Turn the grinder on using the rocker switch
which has the “I/O” marking. Off is desig-
nated by the”O”, on by the “I”.