This is necessary to mount our ATC electrical cabinet to the side of your mill (770 and 1100 size only). It includes required mounting spacers and bolts and is included with the mounting cabinet if you specify either of those sizes of mills.
It's included here for those who wish to build their own cabinet, but still need a way to mount to the side of the mill's z-column.
Material is 10mm thick 6082 alloy, laser cut with the mounting holes machine drilled and tapped.