Graph Tech Ratio Machine Heads – Ultimate Control & Precision
The PRN-3424-N0 is
a right handed set of Ratio Calibrated Machine Heads for electric guitar that
use three per side tuners. It has a two pin casing that can be used as is, or
with our InvisoMatch mounting plates.
4 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.
RATIO® patented gear technology
RATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.
From Low E to High E 39:1, 24:1, 20:1, 35:1, 20:1, 12:1.
We balanced the gear ratios to each string simplifying the tuning process.
With RATIO®, a half-turn is a semi-tone!
Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string.
Please note that Graph Tech's retro tuners are made to a vintage specification (for 11/32” peghead holes) and will not be a direct replacement for a modern tuner. Please check the specifications.
Gear ratio: unique for each string position - one turn-one tone
Peg holes diameter required: 0.346" (8.8mm)
String post diameter: 0.236" (6mm)
String post length to string hole: 0.827” (21mm)
Weight per single machine head: 0.056lbs (25.5g)
Weight per set of six: 0.338lbs (153g)
String diameter up to 72 gauge
Includes 6 machine heads, mounting screws and bushings
