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Graph Tech

collapse expand iconDescription

The Graph Tech 5-string Ratio 4+1 bass Classic Clover Leaf button tuning machine heads incorporate different string gauges into the tuning equation. Graph Tech balanced the gear ratios to each string, simplifying the tuning process. With Ratio, a half turn is a semi-tone. Every string reacts the same to any tuning adjustments, delivering predictable, precise tuning on every string. The Graph Tech PRB-5411 is a right-handed set of Ratio calibrated machine heads for bass guitars that use 4 x 1 configuration.
Graph Tech 5-String Ratio 4+1 Bass Classic Clover Leaf Button Chrome 5 String

collapse expand iconFeatures

  • Includes:
  • 5 machine heads
  • Mounting screws
  • Bushings

collapse expand iconSpecs

  • Gear ratio: 76:1, 48:1, 36:1, 25:1, and 23:1
  • Peg holes diameter required: 0.720" (18mm)
  • String post diameter: 0.547" (13.9mm)
  • String post length to string hole: 0.807" (20.5mm)
  • String diameter up to 130 gauge

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