StewMac Tools Every New CBG Builder Should Know
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Introduction
Building your first cigar box guitar (CBG) is an exciting project — but without the right tools, it can quickly turn into frustration.
I learned early on that using basic hardware store tools can get you only so far. Precision is everything in guitar building, and that’s where StewMac tools shine.
StewMac is one of the most trusted names in the luthier world, offering tools designed specifically for building and repairing guitars. Their gear isn’t just for pros — it’s beginner-friendly, durable, and made to deliver consistent results.
In this guide, I’ll share five essential StewMac tools that will make your first CBG build smoother, faster, and far more enjoyable.
Why Choose StewMac Tools for CBG and Guitar Building?
When you’re new to guitar building, it’s tempting to save money with cheaper, generic tools. But precision matters more than you might think.
StewMac tools are:
Designed specifically for guitars and stringed instruments.
Made from high-quality materials for long-term use.
Backed by great customer service and repair advice.
For beginners, this means fewer mistakes, less rework, and a better final instrument. You can explore their full catalog here.
1. StewMacTools. Fret Slotting Saw
Accurate fret slots are the foundation of a playable guitar. The StewMac Fret Slotting Saw is designed to cut perfect, consistent slots to the exact depth you need.
For CBGs, this means your frets will seat properly and your notes will be in tune. A regular saw just can’t match this precision.
Check it out here.
Pro Tip: Always mark your fret positions using a fret calculator before cutting — it saves headaches later.
2. Notched Straightedge
A Notched Straightedge lets you check your neck’s true straightness without the frets getting in the way.
Even a small bow or twist can cause buzzing or high action. This tool makes it easy to identify and fix issues early in your build.
StewMac’s version is machined to exact specs, ensuring accurate readings.
See the tool here.
3. Digital Caliper
From measuring nut width to bridge placement, a Digital Caliper is a must-have for precision work.
On a CBG, accurate measurements are the difference between an instrument that plays in tune and one that doesn’t.
StewMac’s caliper offers clear, easy-to-read measurements in both inches and millimeters.
Find it here.
4. Radius Sanding Block
A Radius Sanding Block shapes your fretboard evenly, giving it a comfortable curve and making your guitar easier to play.
Even for flat CBG necks, this tool ensures consistent thickness and smoothness across the board.
StewMac’s blocks are available in multiple radii, made from durable hardwood for long life.
See options here (affiliate link).
5. String Action Gauge
Setting the right string height (action) is crucial for playability. Too high and it’s hard to play; too low and you get buzzing.
The StewMac String Action Gauge gives you quick, accurate measurements so you can dial in perfect action every time.
It’s small, portable, and one of those tools you’ll use on every build.
Get yours here.
Bonus: Budget-Friendly Alternatives to StewMac Tools
If you’re on a tight budget, you can sometimes improvise tools — for example, using a ruler for string action or a handsaw for frets.
But the downside is reduced accuracy, more time spent, and potentially redoing work. Investing in one or two key StewMac tools now can save you frustration and help you produce better results right from the start.
Conclusion
Starting your first cigar box guitar build is a rewarding journey — and the right tools make all the difference.
These five StewMac essentials are beginner-friendly, built to last, and designed for precision.
Whether you buy one now or collect them over time, each will bring you closer to building an instrument you’re proud to play.
👉 See StewMac’s full selection of guitar building tools here and start your toolkit today.
