Store your M12 Die Grinder (90 Degree) and accompanying kit in the Milwaukee 48-22-8435 PACKOUT Compact Organizer.
Here's a full list of the batteries that are compatible:
Standard M12 Batteries: 2.0Ah, 3.0Ah, 4.0Ah & 6.0Ah (I was unable to source the 6.0 but as best as I could determine, the 6.0 uses the same shell/housing as the 4.0, so it should also fit)
High Output M12 Batteries: 2.5Ah & 5.0Ah
Printed in PETG.
Insert only. Tool, batteries, PACKOUT and accessories not included.