Bosch Universal Oscillating Multi-Tool Adapter OIS001 - The Home Depot
From Starlock® to OIS / OIS12 Multitool Adapter (screw)
Bosch Dremel OIS™ OIS001 Adapter for Bosch | Top Dog Tool
Bosch Universal Oscillating Multi-Tool Adapter OIS001 - The Home Depot
Ocillating Multi Tools Shank Adapter For All Kinds Of Multimaster Power Tools Ois Starlock Oscillating Saw Blades Adapter - Power Tool Accessories - AliExpress
Starlock Multitool Adapter™ (Screw-System) - Oslo Tool Company Int.