This 5-piece set of steel collets and a collet nut is an effective way of improving the grip for bits in Dremel's rotary tool line. Collets offer the most precise way to hold an accessory in a Dremel multitool. The collet kit 4485 is an assortment of collets and a collet nut for Dremel rotary tools. The individual collets are compatible with flex-shaft tool hand-pieces 235 and 237. Features and Benefits: Collets possess size identification rings. Quick-change collet nut to reduce tool downtime. Simple and effective way of improving the grip for bits in Dremel's rotary tool line. The 5-piece set ensures you have the right component to hand no matter the application. Contents: 1 x Collet 480, 1 x Collet 481, 1 x Collet 482, 1 x Collet 483, 1 x Quick-change Collet Nut. Typical Applications: Manufacturing, Automotive.