Precision Straightedges – StewMac

Precision Straightedges

For accurate fretting and neck evaluation.
We make our Precision Straightedges specifically for checking neck straightness and relief, evaluating truss rod adjustments, and pinpointing high or low frets. Available in four lengths, for working on any fretted instrument, from mandolins to guitars to basses.

The narrow beveled edge allows easy and accurate viewing of the gap between the edge and the surface being checked. Made of ultra-high-grade stainless steel with a satin finish, each straightedge is precision-machined for accuracy to ±.0015″ per foot. These straightedges are also ideal for laying out projects on wood or paper, and for setting up table saws, jointers, and other shop equipment.

Made in the USA of German/Austrian stainless steel. You won’t find this level of quality with cheap knockoffs!
Each of our straightedges go through a rigorous 13-step manufacturing process that guarantees accuracy. These straightedges are extremely precise, heavy duty, and designed to handle a lifetime of use in your shop. Before each one gets shipped, it’s personally inspected before leaving the factory.

Our Precision Straightedges won’t bend or dent as easily as some aluminum straightedges on the market. The satin finish allows you to mark it with a pencil in order to make notes or to compare one guitar’s setup to another.

• Guaranteed accuracy to +/- .0015″ per foot
• 0.090″ thick 420 German/Austrian surgical stainless steel (2.286mm)
• Hardened and tempered for lasting accuracy
• Individually inspected to ensure precise tolerances
• Proudly made in Ohio, USA

#3850 18″ Precision Straightedge is part of our Basic Setup Kit.

For acoustic guitars, our Neck Set Gauge is designed to attach to the #3799 24″ Precision Straightedge.