StewMac Basic Guitar Setup Kit - Precision Metric Luthier Tools

In this review the StewMac Basic Guitar Setup Kit is presented as a compact, essential toolset for anyone who wants reliable setups without a workshop full of gear. The kit is aimed at hobbyists, gigging musicians and small repair shops who need a simple, accurate way to measure string action, neck relief and saddle radii. The single biggest reason to buy is accuracy: these are precision steel gauges and a machined 18' straightedge that make repeatable, professional adjustments possible even for first-time tuners.

Key Features

• Built to last: Steel construction and StewMac's lifetime promise mean the tools hold their accuracy and survive regular shop use.
• Metric string action gauge: Makes quick, instrument-focused height checks of strings, nuts, saddles and pickup polepieces without fumbling with a ruler.
• 18' precision straightedge: Machined to very tight tolerances for accurate neck relief checks and precise truss rod adjustments.
• Understring radius gauges: Laser-cut steel radii let you match bridge saddle heights to the fretboard curvature for better action across the neck.
• Instructions included: Step-by-step guidance from a StewMac tech plus online video tutorials help beginners achieve professional results.

Who It's For

The kit is best for guitarists who do their own maintenance, small shop techs, and home builders who need a compact set of reliable measuring tools. It works equally well on electric and acoustic guitars where metric measurements are preferred.

It is not meant to replace a full luthier bench for heavy refrets, complex setup overhauls or specialty instruments; players who need torque wrenches, specialized nut files or complete setup stations should look at more comprehensive toolsets.

Pros & Cons

Pros

• Excellent build quality and accuracy, praised by users for repeatable results.
• Compact, logically chosen selection of tools covers the most common setup tasks.
• Understring radius gauges match fretboard curvature well, simplifying saddle adjustments.

Cons

• Some customers regard the kit as pricey relative to its size, so value for money is mixed.

Specifications

Brand	StewMac
Included tools	Metric string action gauge, 18' precision straightedge, 9 understring radius gauges
Materials	Steel (machined straightedge and laser-cut gauges)
Measurement system	Metric
Instructions	Printed step-by-step guide plus online video tutorials
Intended use	Guitar setup, neck relief checks, saddle radius matching

Our Verdict

The StewMac Basic Guitar Setup Kit is a smart buy for players and small-shop techs who want reliable, professional-style measuring tools without a big investment in equipment. Its precision steel parts and clear instructions make common setups faster and more accurate, though buyers seeking the lowest possible price may find it expensive for the number of parts provided.

Frequently Asked Questions

Will this kit work on both electric and acoustic guitars?
Yes. The gauges and straightedge are suitable for checking neck relief and string action on both electric and acoustic guitars.

Are the radius gauges matched to common fretboard radii?
Yes. The laser-cut understring radius gauges cover common radii and users report they match neck curvature well when setting saddle heights.

Does the kit include setup instructions?
Yes. A step-by-step printed guide is included and StewMac provides ongoing video tutorials to walk you through common repairs and setups.