It took me over a year to finally stop procrastinating and model up a bin for my Klein Tools MM400 Multimeter. The thing is just so hard to measure. I tried scanning it a few times but was never happy with the results. I finally decided that rather than trying to model the device, I would just model its silhouette. This worked out pretty well. It's not as form-fitting as I would like, but I think it does the job nicely.

✅ Confirmed Fit For:

• Klein Tools MM400

• Klein Tools MM300 - Thanks @williamh24076_123690

❌ Confirmed NOT a fit for: 

• Klein Tools MM325 - Thanks @mattspark123_4685993

• Klein Tools M320 - Thanks @messedupRyan

• Klein Tools MM450 - Thanks @DubstepUnicorn

If you find that it works for any other models, PLEASE drop a comment so I can update the list below!

Printing Notes:

• This is a pretty big print. I suggest using Lighting Infill to save on material and to make it a bit lighter

• I've included a super minimal “Fit Tester” model. If you think your multimeter might fit but aren't sure, print this first to test its fit before spending the time and material to print the full model.