Quickly and easily change accessories on a Dremel® rotary tool without changing collets with the Dremel® keyless chuck. The 4486 keyless chuck eliminates the need for a collet and wrench when changing accessories. The steel three-jaw chuck can be used with all Dremel® rotary tools and can be used with all bits with a 1/32 to 1/8 in shank. Ideal for light-duty accessories including drill bits, sanding drums, polishing wheels, wire and bristle brushes, cut-off wheels and more. Can be used with Dremel® 225 flex-shaft and the 575 right angle attachment.