DREMEL, Threaded Point, 1 1/2 in Overall Lg, Rotary Tool Mandrel - 1UH57|401 - Grainger
Amazon.com: 3pcs Mandrel Set with 1/8" (3mm) Shank and Screw Fits Dremel and Most Rotary Tools : Industrial & Scientific
Dremel 1/8 In. Screw Rotary Tool Mandrel - Channellock
11pc 2mm Cut-off Wheel Screw Mandrel 1/8” Shank Holder for Dremel and Compatible Rotary Tools - - Amazon.com
3mm Cut-off Wheel Holder Screw Mandrel for Dremel Rotary Tool – ABRASIVES' HOME
Dremel EZ Lock Rotary Tool Mandrel with EZ Lock 1-1/2 in. Rotary Tool Diamond Tile Cutting Wheel for Tile and Ceramic Materials EZ402+EZ545 - The Home Depot