Description
Here’s what Graphtech say about the 3+3 Ratio Electric Locking Machine Heads
The PRL-8311, 8322, 8331, 8341 are a right-handed sets of Locking RATIO® Calibrated Machine Heads for electric guitar that use 3 x 3 tuners, such as Gibson style and PRS style guitars. A great upgrade over a single gear machine heads, such as Grover, Schaller, Sperzel, Kluson, etc. It has a two pin casing that can be used as is, or with our 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.
Specifications
- Gear ratio: unique for each string position – one turn-one tone
- Peg holes diameter required: 13/32″ (10mm)
- String post diameter: 0.236″ (6mm)
- String post length to string hole: 0.910” (23mm)
- Weight per single machine head: 0.083lbs (38g)
- Weight per set of six: 0.496lbs (225g)
- String diameter up to 72 gauge
- Includes 6 machine heads, mounting screws and bushings
- Includes complimentary 4 sets of aluminium mounting plates




