Dremel-Multi-Chuck-Dremel-2615448632-p-The-Dremel-4486-Multi-Chuck-allows-you-to-quickly-and-easily-change-accessories-on-your-Dremel-multitool-without-using-collets-It-accepts-drills-and-other-accessories-with-diameters-between-0-4-and-3-4mm-p-Dremel-2615448632-4486-Multi-Chuck