Dremel 4485 5pc Collet and Nut Set. Includes; 1/32 inch collet, 1/16 inch collet, 3/32 inch collet, 1/8 inch collet, and collet nut. For use with all rotary tools except discontinued Models 1, 2, and Series 1 or earlier of discontinued Models 260, 270 and 280. Individual collets are compatible with Flex-Shaft Tool handpieces number 235 and 237.