Loading your tools properly in the collets and tool holders is a critical
step in setting up the machine and should be done carefully to reduce the risk of breaking a tool and/or
Begin by choosing a collet matching the diameter of your tool such that the shank of the tool
easily slides into the hole.
The collet and nut need to be assembled before mounting to the tool holder.
Collet and nut assembly
You will see that there is a small groove on the thicker end of the collet.
This groove must be snapped into the nut before mounting to the tool holder.
To do this, push the collet into the back of the nut at a slight angle, then
twist it and align it with the axis of the nut until you hear it "click"
into place. As such, it should rotate freely inside the nut.
Inserting the collet
At this point it is a good idea to check to see that your tool easily
slides into the hole in the collet. If not, you might have the wrong collet,
or you did not properly snap it into place.
Checking for clearance
Place the tool holder into the fixture. You need to align the slots
in the tool holder with the tabs in the fixture. Also, the tool holder will only
go into the fixture in one orientation. The slots are slightly different in width,
as are the tabs on the fixture. You can easily figure out the orientation, by facing
the slot with the small tapered hole inside it toward you.
Insert tool holder
Align tool holder
Now you can take the collet and nut and slightly screw it onto the tool
holder. (You may need to do this sideways in order to keep the collet from falling
back out of the nut, and then put the assembled tool holder back in the fixture.)
Place collet and nut
Place the tool shank into the collet. (If it seems too tight, you may have
screwed the nut on too much). You'll need to hold the tool with the shank in
the collet at a proper depth, while hand-tightening the nut.
Finally, use a wrench and tighten the nut down. This needs to be tight,
but you can damage the collet if you over-tighten.