Dremel 402 - 1/16 inch Screw Mandrel — widgetsupply.com
Keyless Drill Chucks Thread 9/32" 40 for Dremel 4000 400 3000 8200 Grinder Rotary Tool 0.4 3.4MM Faster Bit Swaps flexible shaft|thread nail|thread ringthread rod - AliExpress
0.5-3.2mm Multi Keyless Chuck 9/32"-40 For Original Dremel 4000 3000 Rotary Tools Grinder Drills - Power Tool Accessories - AliExpress
Dremel Tool Holder Frame Attachment (3/8” Thick) 3/4-12 or 3/4-16 Or 1/2-20 TPI | eBay
Dust Blower with British system thread Dremel Tools Accessories Suit for Original Dremel as DREMEL 3000/DREMEL 200|tool|tool toyotasuit piece - AliExpress