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
Universal Multi Quick Change Keyless Chuck, EEEkit Keyless Drill Chuck Driver Conversion Tool Fit for Dremel 4486 Rotary Tools 3000 4000 7700 8200 - Walmart.com
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