This is a model of a Milwaukee M18 battery connector with four pins, which can be commonly found on AliExpress. I believe this part can greatly simplify 3D model complexity for those looking to print their own custom M18-powered projects. Please note that I did not model this part based on any drawings, and its accuracy is limited to my calipers and hand measurements.
[NOT DESIGNED TO BE PRINTED]
The author marked this model as their own original creation.