Mitutoyo 188-151, Screw Pitch Gage, 4 - 42 TPI and 0.4 - 7mm, 51 Leaves, Inch/Metric Black

Nicely made useful for fine pitch screws , probably need to keep light oil on it , I have not had it long enough to see if it may rust.

Whats not to love? Mitutoyo is hard to beat, and it works for both SAE and Metric. I carry this in my tool kit to help identify fasteners when a quick visual doesnt always work, especially on custom hydraulic fittings.

Excelent product especially this version for mm or in threads, great surface finish, well protected by oil and a good box and plastic bag as package. Great tool . AAA+

High quality tool. Brand name you can trust. I would buy this again, but I expect not to have to.

Spend the extra money to get a good one! I wasted a whole hour going back and forth trying to find out thread pitch on a bolt that ended up being 1.5. It was because my cheaper gauge was off! This is a quality gauge.

Both metric and US gauges in one tool and the individual leaves are strong and durable

Some of the threads are ground flat instead of a point example 10 tpi , I wouldn’t have know but used it today and the gauge don’t even reach the bottom of threads compared it to my old starrett and there was a few of the medium course threads also like they ground the points off to much kinda odd from Mitutoyo but I guess it happens sending it back and will buy a new starrett gauge instead

It’s a little pricey. Great quality. It will outlast you.

This tool appears made to last.

As they say, it’s Mitutoyo. Nice quality and accuracy. The two locking screws are much easier to adjust so the thread gages are easier to position.