String Action Gauge Ruler, Guitar Set Up Gauge,Multifunctional Guitar Fret Rocker Luthier Tool with Thick Leather Case,Precise Etched, Polished Edge (Inch and Metric)

This is a quality tool as far as I can tell, but I’m no expert on guitar tools. As such, my opinion on the quality should be taken with a grain of salt, but below I will list what I noticed about this tool.Pros:-Accurate measurements. I measured this with my caliper, and every measurement I checked (string action height blocks, and all the final millimeter marks) was spot on.-All the marks are etched into the metal, so they shouldn’t be able to wear off-No sharp edges-Metal is thin, but sturdy enough that I shouldn’t be able to accidentally bend it.-This comes with 3 guitar picks, which are a good additionCons:-Lettering is kind of small, and could be hard to read for some. I guess this is to be expected though, since it’s not much bigger than a credit card.

This is a high quality tool that I use all the time. All I can say is it is a great value for the money.

This thing is super useful and I wish I bought it years ago, saved me time and money. Problem is that I accidentally shipped it with my guitar that I had to return cause it was so screwed up so I’ll probably never get it back. :( at least the tool showed me that my action on my guitar was dropping everyday, would never of known that without this thing. No joke this little ruler probably saved me 1000s of dollars in future set up work for that guitar, good thing I realized I should have returned it.

Clear and accurate and great value for the price would recommend for sure

Checked this against my Starrett 6" rule today, and every scale is spot-on. Extremely impressive for the price. The surface is very reflective which can be just a tad bit obnoxious, but I'm serious nitpicking here. I'm really impressed with how accurate this thing is.

I really like this for guitar setups. Makes adjusting truss rods and single height adjustments easy. Much easier that the feeler gauges I have used in the past.

Wish I would have discovered this years ago, what a difference in just viewing with the dark background. Well made, and an upgrade from my previous one.

Great tool if you have a guitar or a ukulele and like to do your own set up!