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Graph Tech

Graph Tech PRL-9721-CO Ratio Electric Locking 6 Inline Staggered Post (Used)

Graph Tech PRL-9721-CO Ratio Electric Locking 6 Inline Staggered Post (Used)

Regular price $100.00 CAD
Regular price Sale price $100.00 CAD
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Brand new condition tuners, original owner purchased them as an upgrade but did not end up using them. Packaging has been opened but all original parts are included.

From Graph Tech

Ratio – Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation.  We balanced the individual gear ratios to each string dramatically simplified the tuning process.  No more overshooting the G string or twisting away on the high E string.  With Ratio, each half key turn equals one semitone change on all strings!  Quicker, more accurate tuning on every string.

The PRL-9271-C0 is a set of staggered Post Ratio Locking Tuned Machine Heads for an electric guitar in a 6-in-line configuration. They have 3 different heights, contemporary buttons, a 2-pin casing and are finished in chrome

*Now includes InvisoMatch Standard Mounting Plates for easy installation. Fits most headstocks.


  • Tuner machine heads that make tuning easier and faster
  • Each tuner reacts the same to the same amount of force
  • Locking tuner design ensures rock-solid tuning
  • Vintage design looks great on older guitars
  • 1 turn is approximately 1 whole tone
  • InvisoMatch mounting plates allow quick mounting with no extra screw holes
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