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Graph Tech

collapse expand iconDescription

The Graph Tech Ratio 3+3 acoustic guitar 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 PRN-2411 is a right-handed set of Ratio calibrated machine heads for acoustic guitars that use 3-per-side tuners. It has a two-pin casing that can be used as is, or with Graph Tech’s patented InvisoMatch mountain plates. Four different sets of InvisoMatch mounting plates in brushed aluminum are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.
Open Box Graph Tech Ratio 3+3 Acoustic Guitar Tuning Machine Heads Level 1 Black 6 String

collapse expand iconFeatures

  • Includes:
  • 6 machine heads, mounting screws and bushings
  • Complimentary 4 sets of aluminum mounting plates

collapse expand iconSpecs

  • Gear ratio: 39:1, 24:1, 20:1, 14:1, 20:1, 12:1
  • Peg holes diameter required: 13/32" (10mm)
  • String post diameter: 0.236" (6mm)
  • String post length to string hole: 0.910” (23mm)
  • String diameter up to 72 gauge

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