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Graph Tech Ratio Lefty Locking Machine Heads - 6 In Line Contemporary Black

SKU: PRL-8721-LB0
Original price $160.94
Current price $136.80
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The PRL-8721-LB0 is a LEFT HANDED set of Ratio Locking Tuners - Tuned Machine Heads for electric guitar in a 6-in-line configuration. They have contemporary mini buttons, a 2-pin casing and are finished in black. This set is also suitable for a right-handed guitar with a reverse headstock.

Standard InvisoMatch mounting plates are included which allow for installation on nearly every type of guitar without drilling. **Premium color matched InvisoMatch plates are available separately, please check our other items or send us a message if interested.


Gear ratio: unique for each string position - one turn-one tone
Peg holes diameter required: 13/32" (10mm)
String post diameter: 0.236" (6mm)
String post length to string hole: 0.910” (23mm)
Weight per single machine head: 0.083lbs (38g)
Weight per set of six: 0.496lbs (225g)
String diameter up to 72 gauge
Includes 6 machine heads, mounting screws and bushings
Includes complimentary 4 sets of aluminum mounting plates

Science Behind Ratio

Ratio® tuning feels natural. You don't have to think about which string you are tuning because they all feel and respond the same. No more overshooting the Low E or G. No more twisting away on the High E or D string. Open tunings have never been easier. String gauges such as light top, heavy bottom are no problem with Ratio®; they still do the same precision tuning. 

Ratio InvisoMatch Mounting Plates are the easiest approach to installing Ratio Tuned Machine Heads on your guitar. Simply select the installation plate design that matches the screw/pin hole location of your factory installed machine heads, then follow the three step process described below. You’ll be up and running within about seven minutes

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