Price updated 23 Apr 2026, 02:00
Graph Tech·Guitars and Basses›Guitar & Bass Spare Parts›Guitar/Bass Machine Heads›Miscellaneous Tuning Machines for Guitar
Graph Tech PRL-9721-B0 Ratio Locking
Fair Price· Near 90-day average
90d Low
£148.90
Best seen
90d High
£148.90
Worst seen
90d Average
£148.90
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30d Forecast
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Fair Price· Near 90-day average
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| Store | Price | Shipping | Total | Condition | Stock | |
|---|---|---|---|---|---|---|
| BestThomann | £140.00 | £8.90 | £148.90 | New | — | Buy now |
Product Description
- Graph Tech PRL-9721-B0 Ratio Locking
- Locking Machine Heads for Electric Guitar
- Right-handed set
- Closed construction
- Staggered posts (different shaft heights, thus no string hold-downs necessary)
- Each machine head has its own ratio, calibrated for the respective string
- A half turn of any machine head changes the tuning of the respective string by a semitone
- Faster, more accurate tuning of each string
- Locking screw on the back to clamp the string in place
- Ratio: E - 12:1
- B - 20:1
- G - 35:1
- D - 20:1
- A - 24:1
- E - 39:1
- 6 Pieces: 6-in-Line
- Bass Side (Left)
- 2-Pin mounting
- Axis diameter without mounting sleeve: 6.0 mm
- Mounting diameter with mounting sleeve: 10.0 mm
- Incl. 4 sets InvisoMatch standard mounting plates to use existing screw holes
- Weight approx. 37.75 g (single)
- Mini Contemporary knobs
- Black finish
