TIMESETL 14Pcs Guitar Luthier Tools Set Including Understring Guitar Radius Gauge, String Action Ruler Gauge, Guitar Notched Radius Gauges Guitar Set Up Tool Kit for Guitar and Bass Setup

While I think these are accurate enough I wouldn't go so far as to say they are proffessional level. The guages do seem to be pretty spot on but like many people have said the string ruler is off.

Budget friendly, accurate guages . A bit sharp on the edges left over from the stamping process (needed a bit of edge softing

I liked all of it, The price is great and i encourage anyone who plays guitar or bass to learn how to set-up your own instrument, most places charge 50 -75.00 and it is so simple to do with these tools, I think some of the so-called Guitar (LUTHIER) Tool companies have to high of a mark-up on their Tools, like Auto Marine, crazy prices, here i get what i need and am able to do more work on other peoples instruments and it is nice to show them how the Guitar should be set-up.Thank you, Jan

These will work well for you if you aren't working on a lot of guitars. You can definitely set your guitar up with these tools and have good results. They are all sharp, which I suppose for the price should be expected but you will want to be careful not to cut yourself or damage the instrument you are working on.

Pros - Radius GaugesI'm happy with the radius gauges. I've used the "over the string" gauges and they have a good finish with no burrs.Cons - String Action GaugeThe stamped markings are not quite inaccurate but they are probably accurate enough for guitar work.However the tool was cut improperly so that the edges aren not where "zero" should be, which does make it problematic for guitar work.Photo #1: Notice that the markings that are along the edge don't meet the bottom. For instance "0.020" is more like 0.040. This is a major problem.Photo #2: Notice that the 1" mark is aligned with my accurate Starrett rule, but the 2" mark is not. This isn't a big deal because I'm not sure a 2" rule is all that important on a string gauge, but you can see that it's not a precision tool.Photo #3: The edge of the gauge overhangs where "zero" should be, making all measurements high by about 1/64".