Keyless Quick Change Chuck Replacement Electric Grinder Tool for 9/32-40 Th

Accepts accessory rotary bits with 1/64 to 1/8 shank (0.4-3.2mm). Thread Diameter: 9/32-40. This chuck allows quick and easy accessory changes on the Dremel Multitool without changing collets. Keyless chuck converter to go driving to drilling in seconds.Twist to tighten/loosen with heavily knurled gripping means with no spanner or spanner needed Please make sure your Dremel rotary tool model is listed below -above. quick change chucks can only be used with Dremel rotary tools, which does not fit other rotary tools. Dremel electric grinder models are: 4000, 400, 3000, 398, 395, 300, 285, 275, 200, 100, 8200, 800, 780, 770, 7700, 750