Dremel collets set dremel 2615448532 collets offer the most precise way to hold an accessory in a dremel multitool the dremel 4485 collet kit is an assortment of the 4 different available collets 0 8 1 6 2 4 amp 3 2mm diameter and includes a collet nut dremel 2615448532 4485 collets nut kit 480 81 82 83 4 piece