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. The String Action Gauge is the perfect tool for getting a guitar’s action set and the truss rod dialed in.

Dunlop's suggested action at the 12th fret:

• Electric:
  • Low E: .060"
  • High E: .040"
• Acoustic:
  • Low E: .080"
  • High E: .050"
• Bass:
  • Low E: .100"
  • High E: .080"