CMT OMA31-X2 Pair Of Universal Adapters for Multi-Tool Blades Oscillating Multicutter, Gray - - Amazon.com
Oscillating Multi Tools Shank Adapter For All Kinds Of Multimaster Power Tools Oscillating Saw Blades Adapter (not For Starlock) - Power Tool Accessories - AliExpress
Starlock Multitool Adapter™ (Screw-System) - Oslo Tool Company Int.
Oscillating Multi Tools Shank Adapter For All Kinds Of Multimaster Power Tools Oscillating Saw Blades Adapter (not For Starlock) - Power Tool Accessories - AliExpress