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-8721 is a left-handed set of Locking RATIO® Calibrated Machine Heads for electric guitar that use 6-in-line tuners.

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

Features

• 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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