Updated 16 May 2026
| Brand | StewMac |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £53.50 |
StewMac
StewMac SM4243 Bullet 2.0 guitar jack tightener - 12.7mm
£54.00Fair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£52
Change
+7.5%
Avg
£52
Low
£47
High
£58
Volatility
5.1%
PRODUCT DESCRIPTION
- This SM4243 jack tightener is the tool of choice to tighten or repair loose jacks without having to take apart your guitar, amp or pedal. Ideal for quick use during a gig. This tool works from the outside and is easy to use. Put this compact little tool in your gig bag so you always have a solution in your pocket for a problem that happens regularly. Suitable for 1/2-inch nuts or approximately 12.7 millimetres and guaranteed to last a long time.