Case Compatible with Klein Tools ET300 Circuit Breaker Finder, Finds Electrical Circuit Breaker and Electrical Outlets for Klein Tools RT250, Mesh Pocket for Southwire Adapter/ Accessory/ Batteries

So the fault may not be with the maker of this product as much as with the toolmaker but when searching by the exact model number for my tool this is provided as an option however this item along with many of the other items you find searching for the model number will not work because there are apparently multiple versions of this tool in different sizes and shapes even though they use the same model number so my tool is about an inch longer than this entire case.

Nice case