StewMac Precision Notched Straightedge
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Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.
Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.
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This is a 22-5/8 inch steel straightedge with notches cut to clear the frets, so you can lay it on the fretboard and read the neck's true flatness without the frets getting in the way. StewMac rates it at +/-.0015 inch per foot, which is tight enough to trust for truss rod adjustments and fret leveling checks. Its satin finish takes pencil marks, so you can note high or low spots as you work. It is a setup and diagnosis tool for guitar techs and serious home luthiers, not a general-purpose ruler; the notches only fit a given fret scale, so check the spacing matches your instrument before buying.
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In stockSold by stewart-macdonald
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Lowest price we've seen: $89.99 on Nov 10 at eBay. Tracked across 4 stores since Nov 10.
Luthiers who use it describe it as a dependable reference for reading neck relief and spotting uneven fretwork, and the notched design is the reason they pick it over a plain straightedge. Complaints center on notch spacing not fitting every scale and on the need to handle it carefully.
