Categories›Guitars›Graph Tech PRL 8421 C0 Ratio Electric Locking Machine Heads with Mini Contemporary button - 4 + 2 - Chrome
Updated 9 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £148.50 |
Graph Tech
Graph Tech PRL 8421 C0 Ratio Electric Locking Machine Heads with Mini Contemporary button - 4 + 2 - Chrome
£148.00£166.00↓ 11% offFair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£137
Change
+10.2%
Avg
£136
Low
£124
High
£146
Volatility
4.0%
PRODUCT DESCRIPTION
- The Graph Tech PRL-8421-C0 Ratio locking machine heads are a perfect upgrade for your electric guitar. This set consists of 6 machine heads (4 left
- 2 right) that tune quickly and accurately due to their unique gear ratios per string. The system is designed to keep tuning stable, with easy locking via the thumbwheel screw at the back. The mini contemporary buttons and chrome finish provide a modern look and ease of use.