Graph Tech PRB-6330-C0 Ratio Bass Machine Heads with Y-Style Button - 6-String, 3 + 3 - Chrome

- Graph Tech Ratio machine heads for bass
- closed construction
- each machine head has its own gear ratio, calibrated for the respective string
- one full rotation of any key results in one full tone pitch change (+ / -)
- ratio: B - 48:1, E - 36:1, A - 30:1, D - 20:1, G - 18:1, C - 16:1
- 6 pieces: 3x left, 3x right
- axis diameter without mounting sleeve: 8.9 mm (0.350)
- mounting diameter with mounting sleeve: 14.3 mm (0.563)
- weight ca. 52.62 g / 0.116 lbs (single)
- Y-Style Contemporary button
- chrome finish