Graph Tech 3+3 Ratio Electric Locking Machine Heads | Chrome

The Graph Tech 3+3 Ratio Electric Locking Machine Heads in Chrome are precision-engineered for right-handed electric guitars with 3 x 3 tuner configurations, including Gibson and PRS styles. These locking RATIO® calibrated tuners offer superior tuning stability compared to traditional single-gear machine heads like Grover or Schaller. Featuring a two-pin casing, they can be installed directly or with the included patented InvisoMatch mounting plates, which ensure quick, accurate installation using existing screw holes. This set includes four brushed aluminum mounting plates to fit most guitars seamlessly.

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 aluminum mounting plates