Graph Tech PRB-4401-C0 Ratio Bass Machine Heads, Open Back with Classic Clover Leaf Button - 4-String, 4-in-Line, Bass Side (Left) - Chrome

- Graph Tech Ratio machine heads for bass
- open 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: E - 48:1, A - 36:1, D - 25:1, G - 23:1
- 4 pieces: 4-in-Line, bass side (left)
- axis diameter without mounting sleeve: 13.9 mm (0.547)
- mounting diameter with mounting sleeve: 18.3 mm (0.720)
- weight ca. 99.34 g / 0.219 lbs (single)
- Classic Clover Leaf button
- chrome finish