Graph Tech PRN-2731-C0 Ratio Electric Guitar Tuned Machine Heads (Chrome)

The PRN-2721 and PRN-2731 are right-handed sets of RATIO calibrated machine heads for electric guitar that use 6-in-line tuners. It has a two-pin housing that can be used as is or with our patented InvisoMatch mounting plates. 4 different sets of brushed aluminum InvisoMatch mounting plates are included to make installation on most guitars quick and precise using your existing screw mounting holes.

Specifications

• Patented RATIO 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 have balanced the gear ratios at each chain simplifying the adjustment process
• With RATIO, a half turn is a half step
• Each string responds the same to any tuning setting. Predictable, precise tuning on every string
• Gear ratio: unique for each string position – one turn-one tone
• Required dowel hole diameter: 13/32″ (10 mm)
• Rope Post Diameter: 0.236″ (6mm)
• Length from rope post to rope hole: 0.890″ (22.6 mm)
• Weight per single machine head: 0.066 lb (30 g)
• Weight per set of six: 0.393 lb (179 g)
• Rope diameter up to 72 gauge
• Includes 6 machine heads, mounting screws and sockets
• Includes 4 free sets of aluminum mounting plates