Fits Milwaukee M18 RED LITHIUM XC 4.0, and Milwaukee M18 RED LITHIUM XC 5.0, batteries. This allows you to place tool and or battery on magnetic surfaces out of the way while working, and gives the battery some extra protection. I designed this for my own tools for my full time job as an Automotive Tech.

This doesn’t include battery, or tool.

Hand tighten screws, don't over tighten