Categories›Guitars›Graph Tech PRL 8621 B7 Ratio Electric Locking Machine Heads with Contemporary Mini button - 7-String, 3 + 4 - Black
Updated 9 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £163.00 |
Graph Tech
Graph Tech PRL 8621 B7 Ratio Electric Locking Machine Heads with Contemporary Mini button - 7-String, 3 + 4 - Black
£163.00£192.00↓ 15% offFair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£149
Change
-1.7%
Avg
£154
Low
£146
High
£160
Volatility
2.0%
PRODUCT DESCRIPTION
- The Graph Tech PRL-8621-B7 Ratio Locking Machine Heads are specially designed for 7-string electric guitars. These machine heads offer locking construction and an advanced, individually tuned gear ratio for each string. The innovative design allows you to tune each string faster and more accurately with just a half-turn of the knob, resulting in more precise tuning of your instrument. Includes InvisoMatch plates for using existing screw holes, making installation easy without additional modifications.