Diesel Compression Test Adapter - Cummins, Case & Dodge

First, ToolSource packaged this injector adapter well and shipped it quickly. I would readily buy from them again.

This adapter works for Cummins 6BT engines.

I took away 1 star because this adapter requires a 26mm socket to install -- on a 24mm x 1.5 threaded hole! Most folks don't have a 26mm socket on hand, so be advised.
I took away two stars because the Schrader valve leaked. If you're a one man show, that's unacceptable. If you've got someone cranking the engine, you can still read the gauge just fine.
The brass alloy used is soft. After six installs at roughly 25-30ft#'s of torque, there are slight indents on the corners of the hex nut portion of the adapter. Nothing is rounded, but it's headed that way. I bought this for personal use, so it'll suit me just fine, because I don't perform compression tests that often.
FYI, the connection is a 1/8" npt male automotive connector. Most folks use the 1/4" industrial style connectors, so be advised.