Product Overview
A right handed set of Locking Ratio Calibrated Machine Heads for electric guitar that use 6 in-line tuners. It has has a two pin casing that can be used as is, or with GraphTech's 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.
Ratio - Tuned 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. Graph Tech 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.
The PRL-9721 is a right-handed set of Locking RATIO® Calibrated Machine Heads for electric guitars that use 6-in-line tuners with staggered posts (eliminates the need for a string tree).
