Guitar Set Up Tool Combo. 5mm + 4mm Ball End, Martin, Takamine Truss Rod Wrenches and String Action Gauge

I highly recommend this combo of truss rod wrench and action gauge. Really, one is not useful without the other. Both fit nicely in the guitar case. The wrench is the perfect length for my Martin Dreadnaught Jr. The gauge takes up practically no space at all. The free shipping was also welcome!

Very practical set for maintenance & monitoring condition of Matin guitar neck!

This is a great little kit. I used it today and my guitar is playable again. In fact, my Martin D-15 plays and sounds better than it ever has. I wish it had included a pouch or case. I would have rated it a 5 had it included one.

Perfect fit for my Martin D16RGT. Great Value for the wrench and the gauge. Made setting up a breeze.

Exactly what I needed. In the long run, saves me money not paying someone to set up my guitar up for me.

Not too difficult to earn all five stars. Arrived on time, item as described. Wrench fits my Martin X series, gauge is a nice bonus.

Worked great on my Ovation Celebrity CS-257 shallow body guitar. The buyer should be aware that it is too big for some acoustic guitar brands.

The tools is useless for smaller truss rod hex nuts. But the steel card is good for accurate measurements of string height off frets. There are other useful measuring charts on the card. Average 3 stars for the set. Should include smaller-larger hex set for a few dollars more.