FretGuru String Action Gauge: Why One Guitar Shop INSISTS Techs Use it Exclusively

Written By Joseph Pollicino

When setting up guitar or evaluating one for more advanced fretwork, hyper-precise measurements are a key factor for repeatably achieving excellent playability. That’s why FretGuru designed the world’s best multi-function guitar string action gauge for the task. Don’t just take our word for it either!

We’re ecstatic to highlight that Hank of Hank’s Guitar Shop had this to say in a GuitarsDoneRight.com article about the dos and don’ts of measuring string height precisely: 

“Our shop has tried about a dozen different brands of string action gauges, striving for accuracy and consistency. We now insist that all our techs use just this one brand of action gauge: FretGuru.”

Most importantly, that they’re…

“…able to to get consistent readings between all [their] techs using the FretGuru Precision 8-in-1 String Action Gauge.”

Click below to purchase yours today and experience the best setup and evaluation gauge for guitar ever created!

(You might want to read Hank’s article first for a surprise.)

Here are some highlights about the FretGuru Precision 8-in-1 String Action Gauge for Guitar Setups:

The hyper accuracy of the second edition FretGuru 8-in-1 Precision String Action Gauge will help you bring your guitar into another world of playability that’s measurably unmatched.

Here are the highlights:

  • Precise String Action Rulers for 0.010” (ten thousands of an inch) or 64th” (1/64ths on an inch) measurements — including halved measurements!

  • Laser-etched markings deep through the durable, anti-glare-coated black finish and metal mean supreme readability with no printing to rub off.

  • Microscopic flatness on three sides ensures precise measuring — you can even use it as a fret rocker in a pinch — thanks to being individually laser cut, CNC machined and then diamond honed and polished.

    • Also ensures our gauge is less likely to scratch guitars thanks to a silky smooth finish (no belt sander marks here!).

  • Made of high-quality stainless steel and engineered from the ground up as a precision measuring and evaluation gauge (not just an imprecise metal business card like many competitors).

  • Shop Rule / Depth Gauge function for up to 2 1/4” / 16mm for everything from pickup height to string spread.

  • Fret Wear Depth Notches help you quickly decide on just a setup or more advanced fret leveling without specialized calipers.

    • Also great as a Fret Height Checker!

  • Extra-thin Nut Slot Height measuring edge lets you rest the gauge in any nut slot (as small as the high e-string, .010”) and on the second fret, so you can glide feeler gauges under the 1st fret.

    • This helps you avoid tone-killing fret buzz and notes that pull sharp on the fret few frets.

  • Inch/Metric Conversions on back to save you time when working between SAE and metric parts.

  • Exceptionally comfortable to hold thanks to front-to-back beveled edges and rounded corners.

  • Includes durable, handmade leather protector sleeve.

  • Precision crafted in the USA.

  • Also available in Metric+ version.

Joseph Pollicino