Dremel 4485 Quick Change Collet Nut Kit N/A Imported Provides the optimal grip for bits offered for our rotary tool line; The collet features small identification rings around its shank Contents: 1 Collet and nuts for 1/8, 3/32, 1/16, and 1 32" bits; Quantity: 4 Pieces (480, 481, 482, 483) For use with all current Dremel rotary tools and 4000, 400, 3000, 398, 395, 300, 285, 275, 200, 100, 8200, 800, 780, 770, 7700, 750 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 hand-pieces #235 and #237 Durable metal shanks for long-lasting use