ROTARY MULTI CHUCK QUICK CHANGE ROTARY POWER TOOL ACCESSORIES FOR DREMEL(4486) Brand new Allow you to quickly and easily change accessories on your Dremel multitool without using collets Fits:Dremel 4000, 400,3000, 398, 395, 300, 285, 275, 200, 100, 8200, 800, 780, 770, 7700, 750 Accepts accessories from 0,4mm to 3,4mm shank