C
OLLETS
Four different size collets (see illus tration), to
accommodate different shank sizes, are avail -
able for your Rotary Tool. To install a different
collet, remove the collet nut and remove the old
collet. Insert the unslotted end of the collet in
the hole in the end of the tool shaft. Replace
collet nut on the shaft.
Always use the collet
which matches the shank
size of the accessory you plan to use. Never
force a larger diameter shank into a collet.
Note: Most rotary tool kits do not include all
four collets sizes.
FIXING STUCK COLLETS
It is possible for a collet to get stuck within the
collet nut especially if a collet nut is tightened
onto the tool without a bit in place. If this
happens, the collet can be removed from the
collet nut by pushing the shank of an accessory
into the hole in the collet nut. This should cause
the collet to pop out of the collet nut.
COLLET NUT
To loosen, first press shaft lock button and
rotate the shaft by hand until the lock engages
the shaft preventing further rotation. Your
Dremel 2050 is equipped with a quick shaft lock
mechanism.
Do not engage lock while
the Rotary Tool is running.
With the shaft lock engaged use the collet
wrench to loosen the collet nut if necessary. The
collet nut must be loosely threaded on when
inserting an accessory. Change accessories by
inserting the new one into the collet as far as
possible to minimize runout and unbalance.
With the shaft lock engaged, use collet wrench
to securely tighten the collet nut (Fig. 3). Avoid
excessive tightening of the collet nut when
there is no bit inserted.
COLLET
NUT
TO
LOOSEN
TO
TIGHTEN
SHAFT LOCK
BUTTON
FIG. 3
10
Always unplug Rotary Tool before changing accessories, changing
collets or servicing your Rotary Tool.
Assembly
COLLET IDENTIFICATION CHART
Collet sizes can be identified by the rings
on the back end of collet.
1/32" Collet has one (1) ring.
1/16" Collet has two (2) rings.
3/32" Collet has three (3) rings.
1/8" Collet has no rings. (Included in
most tool kits on the tool)
COLLET
NUT
IDENTIFICATION
RINGS
480
1/8"
COLLET
SHAFT
481
3/32"
COLLET
482
1/16"
COLLET
483
1/32"
COLLET
FIG. 2
COLLET
WRENCH