# Tools

String Spacing Ruler - Steel, for marking string locations
Get accurate string spacing without the use of complicated tools with this easy-to-use String Spacing Ruler. "Mark outer string locations with pencil lines (high and low E strings on guitars), usually about 1/8" in from fingerboard edges. Turn ruler over (use marked side). With wide spacing toward bass side, narrow spacing toward treble side, find group of marks (six for guitar) which best fit your two pencil lines. Use a razor knife or thin mechanical pencil to mark the string positions through the ruler's slots.
$19.95 Understring Radius Gauges - 9 Sizes, for Saddle Adjustments Package of 9 Our low profile aluminum understring radius gauges have a precision radiused top and bottom for accurate measurement. The slim shape allows you to take measurements of several radii without removing the strings on your guitar. • Obtain accurate measurements of your instrument's fretboard radius using the bottom radius of the gauge. The bottom radius can also be used to set pickup polepiece height to the string radius. • Use the top radius of this gauge to determine the proper height adjustment for the bridge saddles. • The following gauges are included in this set: 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20"$14.00
String Action Gauge - Measurement Tool
A stainless steel pocket-sized String Action Gauge that's perfect for obtaining quick and accurate action measurements for acoustic and electric instruments. A must have in a busy repair shop! Measurements taken using this gauge include:
• String height
• Nut height/slot depth
• Pickup pole piece height/string to pole piece distance
• Fret slot depth(unbound fingerboards only)

Plus more! The back includes a useful fraction/metric/decimal conversion chart that saves you time. Available in metric or in imperial models (sold individually)
$13.95 Notched Straightedge - 16.5" x 1.5", Stainless Steel, Satin The notched straight edge is a must have on any luthier’s bench for evaluating the straightness of your fret board while avoiding frets that may have seen better days.It’s made of satin stainless steel so cleaning off any markings made with a pencil is a breeze! One side is marked Long Scale Guitar for use with Fender, Martin, Gibson long scale guitars plus others. The opposite side is marked Short Scale Guitar for use with Gibson’s shorter scale as well as Dobro and PRS guitars plus others.$29.95
Feeler Gauge - 20 Sizes, for measuring gaps / clearance
Package of 20
This precise set of 20 feeler gauges in the luthier's workshop can perform a wide variety of functions to measuring with string action to measuring the correct nut slot depths, fret slot width, string to fret clearances, and other hardware installation work, these ground steel feeler gauges are marked in both metric and imperial measurements for easy use.
$8.25 Radius Gauges - 2 Gauges for 8 Radiuses Package of 2 Solid, high quality stainless steel radius gauges. Use during fingerboard/fret shaping to accurately measure your progress and eliminate mistakes. Can also be used when shaping a nut/saddle or when setting string radius at the bridge. Great for working on compound radius necks. This is an essential tool for a luthier/tech’s bench. • Gauge 1 has 7.25", 9.5", 10", and 12" radiuses • Gauge 2 has 14", 15", 16", and 20" radiuses • Set of 2$14.00
Nut Slotting Gauge - Digital, luthier tool
Digital Nut Slotting Gauge. Accurately measure the guitar string height over the first fret with the digital version of this handy luthier’s tool. Display measurements in inches or mm with an accuracy of 0.0005” (0.01 mm). Includes one 1.5V alkaline button cell battery and miniature Philips head screwdriver.
$66.95 String Action Gauge - Dunlop, System 65 The Dunlop System 65 String Action Gauge is a precision measurement tool for setups and adjustments. The gauge includes both metric and imperial measurements on opposite sides.$10.95
Caliper - Digital, highly-accurate for luthiers
This Luthier's Digital Caliper has a custom jaw notch for accurately measuring fretwire crown height (the height above the fretboard). This is essential for comparing new wire to original wire. And there's a notch on the depth gauge to measure fret height on the instrument.
• Measures fret height before AND after fret installation
• Accurate readouts in inches or millimeters
• A must for all precision guitar work
$44.95 Radius Gauges - Notched, stainless steel Package of 4 Solid, high quality stainless steel radius gauges, notched version. Use during fingerboard/fret shaping to accurately measure your progress and eliminate mistakes. Can also be used when shaping a nut/saddle or when setting string radius at the bridge. Great for working on compound radius necks. This is an essential tool for a luthier/tech’s bench. Narrow gauges are used for measuring at the nut to the 7th fret, while the wide gauges are used for measuring at the 7th and higher numbered frets. • Gauge 1+2 has 7.25", 9.5", 10", and 12" radiuses • Gauge 3+4 has 14", 15", 16", and 20" radiuses • Notched version great for taking measurements with strings on • Set of 4$29.95
Profiling Gauge - 150mm length, for duplicating shapes
150mm length. Used to record the shape of a surface, which can then be used to trace a copy onto another surface. Needles are held firmly, which makes them easy to shape, but they remain in place when using to trace.
$16.00 Radius Gauge - stainless steel, 6 radius measurements This stainless steel radius gauge can measure six different radiuses as well as fret crown heights and string action height. Overall size 210mm x 25mm Includes • 7.25" • 9.5" • 10" • 12" • 14" • 16"$16.00