e91e9179_Oscillating_tools___DIYWiki__Blade_Mounting
[Machine] Ferm, Powercraft (Aldi) [Blade Mounting] 
The Ferm and Aldi Powercraft branded tool has a similar arrangement to the Bosch system but with fewer pins: As a result these tools can use their own branded blades, as well as Bosch, and universal ones.
Oscillating tools - DIYWiki
Blade Mounting