A slim, aluminum tube that provides the optimal grip for holding a bit in a Dremel rotary tool. The collet features small identification rings around its shank. These rings correspond with the size of the collet: 0 rings = 1/8 inch, 3 rings = 3/32 inch, 2 rings = 1/16 inch, 1 ring = 1/32 inch. Collets are compatible with 225 Flex-Shaft attachment. For use with all rotary tools except discontinued Models 1, 2, and Series 1 or earlier of discontinued Models 260, 270 and 280.
