Harley Benton Understring Radius Gauge

Like other reviews stated, it really has rough edges and you do need to sand the gauges a bit, otherwise you will end up scratching something.
For the price, this gauges were a pleasent surprise due to their accuracy.
Essential for setups or simply to know the radius on your fretboard, they come with a keyring, so don't leave home without them... ( just kidding ).

Had them checked by my tech against the pricier gauges and they were spot-on. I'm only giving a 4-star on Quality, because the edges are a little rough and not rounded a little. They're not jagged or sharp, just rough.
But, they're accurate and that's all that matters for a gauge.

As someone who just started getting more serious about guitar setups, I appreciate having a cheaper option, that does the job just as well.
This format of gauges are also more convenient as opposed to the square type, since you can slide them underneath your stings.

They do the job as supposed to be.
Just, before you put them against the fretboard, send it properly, as you can damage the wood.

A nice tool for setting up your bridge. Check your fingerboard radius and apply it to the individual string heights! Just has some burrs at the edges but not a problem at all.

This is a very usefull tool for setting up your guitar that you definitely need if you want to do it the right way. It is very versatile and has every radius you can think of - or almost. However you can certainly tell it's cheap, the metal is rough and a fingerprint and smudge magnet.

No need to spend crazy amounts for radius gauges, this is perfect and a must have tool for setting up your guitar. For the price it gets the job done. I gave it 4 stars on quality only because you can feel that the material is nothing special but all in all that's not important. This will get the job done.

Excellent set of measures at a very reasonable price compared to other vendors.
If you often setup your guitar(s) it makes sense to have this set so you feel comfortable about how your saddles are set-up.

Used the 9.5 guide on this set to establish the correct string radius on my Squier Standard Telecaster and it worked perfectly. I had to watch a few 'How To' videos on Youtube to get it right. I have a range of other brands of guitar and basses to use these on and I'm glad I bought them from Thomann rather than from a untrustworthy seller on two particular big name global online retailers!

they work well and are well made, they feel good in the hand and are well priced, a handy tool to have if you need them.