Wednesday, August 24, 2011

Changing Collets

Good afternoon!  As promised, here is more helpful information about changing collets:


Changing Collets
The black nut on the end of the tool that you tighten to secure the bit is the collet nut. Loosen the collet nut until it comes off of your tool completely.

Directly underneath it is a little metal tube with 2,3, or 4 slits in the large end. This is the collet. These are interchangeable.

The hole down the center of the collet holds a drill bit with either a 1/16”, 3/32” or 1/8” shank. Collets are size specific. Larger bits will not fit into smaller collets and larger collets will not tighten enough to hold a smaller bit in place.

All Dremel® tools come with a 1/8" collet. If your Dremel® kit came with several collets you probably already have both the 1/16" and 3/32" collets. If so, you are already set to use bits with 1/16" and 3/32" shanks.

Most people save money by buying a 1/16” or 3/32” collet so they can use smaller, less expensive bits.

You can choose both 1/16" and 3/32" collets in our accessories section. Simply choose a 1/16" collet for bits with a 1/16" shank or 3/32" collet for bits with a 3/32" shank.

Even Dremel® brand diamond wheels and diamond points do not come on a 1/8" shank. They have a 3/32” shank. If you have used Dremel diamond bits before then you already have a 3/32” collet.

There are 2 older models of Dremel® tools that do not accept interchangeable collets.


Next time, I will discuss the different types of grits.

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