The Dremel multi chuck (4486) allows you to quickly and easily change accessories on your Dremel multi-tool without using collets. It accepts accessories from 0,4 mm to 3,4 mm shank.
Now have tool-free accessory changes
Eliminate the collet and wrench when changing Dremel accessories
Accepts all accessory bits with 1/32 in. to 1/8 in. shanks