2-in-1 Precision + Notched Straightedge Combo Set - Accurate Guitar

In this review the StewMac 2-in-1 Precision + Notched Straightedge Combo Set is evaluated for luthiers and serious players who want faster, more accurate setups. The bottom line: this combo gives you two precision-ground tools in one purchase, letting you check fret level, neck relief and fingerboard flatness on both short and long scale guitars with a guaranteed accuracy of +/-.0015' per ft. It is a practical upgrade for techs who need a repeatable reference tool and for hobbyists who want professional-level measurements without guessing.

Key Features

• Dual-sided design: One tool combines a precision straightedge and a notched straightedge so you can check flatness and also rest on frets for relief measurements.
• Combo value: The #4015 set includes the short scale and long scale notched edges so both instrument lengths are covered without buying separate tools.
• Guaranteed accuracy: Each edge is precision ground and finished to within +/-.0015' per ft, which reduces setup guesswork that can cause fret buzz.
• Fast diagnostics: The notched edges let you quickly locate high frets and determine whether truss rod adjustments are necessary during a setup.
• Made in USA: Expertly crafted in Ohio, the tools feel sturdy and consistent in the hand, which helps when performing repeatable measurements.

Who It's For

The combo set is aimed at professional guitar techs, repair shops and dedicated home builders who perform regular setups on both short and long scale guitars and need a reliable reference tool. The precision and dual-notched design speed up work where small differences of.001' matter.

It is less necessary for casual players who only do occasional basic adjustments or rely on a tech; hobbyists who never measure neck relief or fret level may prefer simpler, less costly tools.

Pros & Cons

Pros

• High accuracy ensures repeatable setups and helps eliminate fret buzz caused by tiny deviations.
• Includes both short and long scale notched edges, covering a wide range of instruments in one set.
• Solid construction and precision grinding mean a long-lasting reference tool for shop use.

Cons

• Specialized tool that requires some setup knowledge to use effectively, so beginners will need guidance.

Specifications

Product	2-in-1 Precision + Notched Straightedge Combo Set
Includes	#4012 short scale and #4013 long scale notched straightedges
Accuracy	Guaranteed to +/-.0015' per ft
Purpose	Check fingerboard flatness, fret level, neck relief, locate high frets
Made	Ohio, USA
Design	Two-sided precision and notched edges

Our Verdict

The StewMac 2-in-1 Precision + Notched Straightedge Combo Set is a smart buy for professionals and serious hobbyists who need reliable, repeatable measurements across both short and long scale guitars. Its precision-ground edges and included long/short scale notched tools deliver clear value by reducing setup time and uncertainty.

Frequently Asked Questions

Can this set check both short and long scale guitars?
Yes, the #4015 combo includes both a notched short scale and a notched long scale straightedge to cover both instrument lengths.

How accurate are the edges?
Each edge is precision ground and guaranteed to within +/-.0015' per ft for dependable measurements.

Is this tool suitable for beginners?
The tool is designed for precise setups and is best used by those familiar with measuring neck relief and fret level; beginners can use it but may need guidance.