• A must-have for every guitarist’s toolkit, the Dunlop String Action Gauge provides the precise measurements you need to set up your instrument for optimum playability.
  • Use it to adjust string action, measure string height, make truss rod adjustments, measure pickup height for killer tone and to minimize magnetic string drag, and more.
  • Use the String Action Gauge on any stringed instrument with adjustable action.
  • Includes both metric and standard measurements.
  • Made in The United States.