1/ The steel 3-jaw chuck replacement for Dremel/Rotary bits with 1/32-inch(0.8mm) to 1/8-inch(3.2mm) shanks; Check the size and the brown color code before buying;
2/ Compatible with all Dremel Ryobi cordless and corded models 4000, 3000, 7700, 4300, 7200, 7300, 8220, 8200, 398, 300, 400, 285, 275, 200, 100, 800, 780, 781, 770, 750, 380-5, 395 Multipro ; but for rotary tool models 275, 285, 398 only;
3/ Fits for drill bits, sanding drums, polishing wheels, wire & bristle brushes, cut-off wheels and more light-duty accessories;
4/ Also used for Dremel 225 flex-shaft and the 575 right angle attachment; Quickly and easily change accessories without the need to use a collet and wrench with the Dremel Multi-Chuck;
5/ Package Included: 3 PCS x Quick Change Keyless Chucks.