Yitaocity 3Pcs Quick Change Keyless Chuck Universal Chuck Replacement 4486 Drill Keyless Bit Chuck Shank Rotary Tool Adapter Kit Compatible for Dremel 4486 Model 3000 4000 7700 8200 4300 8220 (3)

Please Note: Those Quick change keyless chucks Accept various accessory rotary bits with 1/32-inch(0.8mm) to 1/8-inch(3.2mm) shanks Those Quick change chucks Only fit for Dremel rotary tools,Don't fit for other rotary tools Those Quick change chucks Only suitable for Dremel rotary tool models 275, 285, 398; Also suitable for models 750, 770 and 781 Multipro drill adapter compatible for Dremel 4000, 400, 3000, 398, 300, 285, 275, 200, 100, 8220, 8200, 800, 780, 770, 7700, 750 This replacement keyless chucks are One-piece structure design, alloy material, sturdy and durable, more safer than plastic models. The 3-jaw chuck is well-made, and the built-in spring is stable and durable. Easy and quick to change accessories replacement on Dremel multi tool without changing collets, under high-speed rotation, it not only maintains stability but also improves work efficiency.