The PRL-9721 is a set of Locking RATIO calibrated tuners for electric guitar that use 6-in-line tuners with offset posts (eliminates the need for a string tree). It features a two-pin housing that can be used as is or with our patented InvisoMatch mounting plates [opens in a new tab]. 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 for each string simplifying the tuning process.
• With ratio, a half turn is a half tone!
• Each string responds the same to any tuning setting. Predictable and 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: 21 mm (0.827 in) – 20 mm (0.787 in) – 19 mm (0.748 in)
• Weight per single machine head: 0.083 lb (38 g)
• Weight per set of six: 0.496 lb (225 g)
• Rope diameter up to 72 gauge
• Includes 6 machine heads, mounting screws and sockets
• Includes 4 free sets of aluminum mounting plates