2-Pack Keyless Chuck, 1/32" to 1/8" Replacement 4486 Drill Keyless Bit Chuck Shank Rotary Tool Quick Change Adapter Kit Compatible for Dremel 4486 Model 395 3000 4000 4300 8220 3000 7300 Multipro - - Amazon.com
Dremel 4486 Multi Chuck - YouTube
Dremel 5 piece Collet Set, for use with Dremel Tools - RS Components Vietnam
TSV Keyless Drill Chuck Fit for Dremel 4486 Rotary Tool 4000 300 200 780 770 750, Keyless Drill Chuck Bit 1/4 Inch Hex Shank - Walmart.com
M8/m7 Mini Drill Chuck Accessory For Dremel Rotary Tool And Mini Grinder Drill Chuck 0.5-3.2mm Faster Bit Swaps Dremel Accessoy - Power Tool Accessories - AliExpress