Graph Tech Ratio Machine Heads Acoustic Guitar OpenBack 3x3 Skeleton PRN-3411-N0
Ratio Tuned Machine Heads
Ratio Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation.
The PRN-3411-N0 is a set of Ratio Open Back Tuned Machine Heads for an acoustic guitar that uses 3+3 tuners. It has a skeleton button and is finished in Nickel. InvisoMatch Mounting Plates (sold separately) make for easy installation on most headstocks.
3 x 3 Skeleton Ratio Tuners
Post Dimensions: 6 x 27.7mm
Mounting Spacing: 25mm
Bushing Dimensions: 9.23 x 8.58mm
Open plate dimensions: 34.75 x 17.41mm
Part Number: PRN-3411-N0
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