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GraphTech Acoustic Locking "Ratio" Tuners



Description:

The PRN-8411, PRN-8441 are a right-handed sets of Locking RATIO® Calibrated Machine Heads for acoustic guitar that use 3 per side tuners.

It has a two pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates.

4 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.

Specification:

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