This multi chuck (4486) allows you to quickly and easily change accessories on your multitool without using collets. It accepts accessories from 0,4mm to 3,2mm shank. -Accepts all accessory bits with 1/32" to 1/8" shanks, use with rotary tool models 4000, 400, 3000, 398, 395, 300, 285, 275, 200, 100, 8220, 8200, 800, 780, 770, 7700, 750.
eBay