Craftsman rotary tool 572-610030 exploded view to see where and how the spring is positioned on the collet lock.The picture has to be quite large.

SOURCE: i would like to know if dewalt has any collets for

go directly to their service site at Dewaltservicenet.com and type in your model number and you will see what is available for it. Then you can also check to find a center or repair facility near you.

SOURCE: Craftsman rotary tool doesn't lock down on the bits.

the collet is either the wrong size for the shaft on the attachment or is missing alltogether

SOURCE: Kawasaki Rotary Tool is missing the square collet nut

I am working on getting a website for this company, but you can try Alltradetools.com and see if they have anything, they distribute them.

SOURCE: Can't find replacement collets/locknut for PowerSmith rotary tool

Hello Bob, I recently saw your post about the Power Smith PS2103. I have this same tool, and have never been able to use it because the collets don't fit the bits.
I was looking at it recently - I have the owner's manual - and although there is no web address, there IS a toll free help line. Here is the number - 888-552-8665
I called the number - got their voice mail, left a message, but they have NOT returned my call!
The only outlet that MAY carry this brand is Zellers, but I haven't been there yet.

Good Luck!
Bob (in Canada)
[email protected]

SOURCE: I have a Durabuilt rotary tool model S1J-FE2-10

I have the same problem with mine. The collet nut that came with it is too big. It wont screw down to hold the collet. I am searching for a new nut.