Not every guitarist wants to take their beloved instrument to a luthier for every small adjustment – this costs both time and money. The Harley Benton Parts String Action Gauge, on the other hand, costs next to nothing and is quick to use into the bargain. This handy tool lets musicians measure their string action precisely and adjust it as needed: Simply place the tool on the fret near the 12th position and look side-on at the gauge's height markings. The point where the string touches the bar without leaving a gap reveals the string height, or action. In the picture here, the String Action Gauge is measuring around 0.140", or 3.5mm – far too high and uncomfortable to play. Just fretting the note at that height would feel like a bend, altering the pitch and making it sound slightly out of tune. To help with corrections, the back of the gauge clearly indicates the recommended string heights for electric guitar, acoustic guitar, and bass; for the 6th string being measured here, the ideal adjustment would be lowering it to around 2–2.5mm.
String action can be adjusted at three points: The nut on the headstock, the bridge on the top, and the neck angle, although most adjustments are made at the bridge – lowering it by 2mm results in a 1mm reduction at the 12th fret. On electric guitars, this process is straightforward, since the action can usually be raised or lowered as needed, while on acoustic guitars it requires a little more effort, as the saddle must be modified. Once they've removed the strings, guitarists can take out the saddle can be taken out, measure its height with the Harley Benton Parts String Action Gauge, and then carefully adjust it to achieve the desired result.
Before sanding down guitar components such as the saddle on an acoustic guitar, it is always advisable to research the process thoroughly; with the Harley Benton Parts String Action Gauge, players at least have a precise measuring tool at hand. This business card-sized aid is inexpensive and ideal for anyone wishing to learn how to adjust their own instrument and identify potential issues. In this example, the string action was lowered to 0.080" (2mm) by carefully grinding down the saddle and making fine adjustments to the truss rod, resulting in a very low and comfortable setup for melodic playing. Guitarists with a heavier playing style are better served by the higher values indicated on the back of the gauge to avoid unwanted string buzz.
Since 1998, the Harley Benton brand has been catering for the needs of countless guitarists and bassists. In addition to an extensive range of stringed instruments, Thomann's house brand also offers a wide choice of amplifiers, speakers, effect pedals, and other accessories. In total, the range includes over 1,500 products. Built by established names in the industry, all Harley Benton products combine quality and reliability at attractive and affordable prices. The continuous expansion of the range ensures that Harley Benton always provides new, exciting, and innovative products that keep players perfectly in tune with the musical world, day after day.
The Harley Benton Parts String Action Gauge provides inexpensive and yet precise measurement for adjusting electric guitars, acoustic guitars, basses and other similar stringed instruments, and thanks to its compact size it's easy to store and always at hand. When it comes to making actual adjustments, however, additional tools are often needed: Fortunately, Thomann offers a whole range of guitar tools and practical accessories including the Harley Benton GuitarTech Neck Rest for secure neck support, any number of multitools and guitar toolkits, and specialised tools for fret levelling. For further improvements, a wide range of spare parts is also available, allowing instruments to be repaired, adjusted, or upgraded – both technically and aesthetically.