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-8721-B7 Machine He B-Stock
Fair Price· Near 90-day average
90d Low
£142.90
Best seen
90d High
£152.45
Worst seen
90d Average
£147.68
Baseline
30d Forecast
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Price History
Avg priceMin–Max band
Fair Price· Near 90-day average
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| Store | Price | Shipping | Total | Condition | Stock | |
|---|---|---|---|---|---|---|
| BestThomann | £134.00 | £8.90 | £142.90 | New | — | Buy now |
Product Description
- B-Stock
- Graph Tech PRL-8721-LB7 Ratio Electric Locking Machine Heads, locking machine heads for electric guitar
- 7-string left-handed set, closed construction, each machine head has its own gear ratio, calibrated for the respective string, half turn of any key is a semi-tone pitch change for each string, faster and more accurate tuning of each string, thumb wheel screw on the back to lock the strings, ratio: E - 12:1
- B - 20:1
- G - 35:1
- D - 20:1
- A - 24:1
- E - 39:1
- B - 48:1
- 7 pieces: 7-in-Line, bass side (right)
- 2-pin mounting, axis diameter without mounting sleeve: 6 mm (0.236"), mounting diameter with mounting sleeve: 9.8 mm (0.385""), incl. 4 sets of InvisoMatch standard mounting plates for use of existing screw holes, weight ca. 38 g / 0.083 lbs (single)
- Contemporary Mini button, black finish
- B-Stock with full warranty, may have slight traces of use"
