AUSTRALIA'S #1 ACOUSTIC GUITAR SPECIALIST
AUSTRALIA'S #1 ACOUSTIC GUITAR SPECIALIST
The GrooveTech Soundhole Truss Rod Wrench makes truss rod adjustments on acoustic guitars a breeze, offering musicians a practical and efficient solution for maintaining their instrument’s neck tension. Unlike traditional wrenches, the GrooveTech wrench is designed specifically for acoustic guitars, providing access to the truss rod through the soundhole. This clever tool allows easy adjustments even in tight spaces, ensuring you can fine-tune your guitar’s neck without hassle.
With its precision ball-end tip, this truss rod wrench fits most acoustic guitars, while the extra length on both segments of the blade provides improved leverage and easier access to nuts that may be blocked by braces. The oversized handle gives you a confident grip, making it easy to apply the necessary torque for adjustments. Available in two sizes, it’s compatible with most brands, with Martin guitars post-2007 (except the Modern Deluxe series) requiring the 5mm wrench and most others needing the 4mm wrench.
Designed for easy truss rod adjustments through the soundhole
Precision ball-end tip for a secure fit on most acoustic models
Extra blade length for enhanced leverage and access
Oversized handle for added grip and control during adjustments
Available in 4mm and 5mm sizes to fit most brands
Compatibility: Fits most makes and models of acoustics
Tip Size: 4mm (most brands), 5mm (Martin post-2007, excluding Modern Deluxe series)
Material: Durable construction with a precision ball-end tip
Length: Extra length for increased access and leverage
Handle: Oversized for a confident, secure grip
Instruments & Amps
Free courier shipping on orders over $1499 to eligible metro areas
$49–$69 standard shipping on lower-value orders
Express shipping available for an additional fee
Regional and remote areas may incur higher freight costs
Accessories
Free standard shipping on orders over $99
Flat $8.99 shipping under $99
$15 express shipping available
Delivery Details
All orders ship with tracking
Instruments and large items require signature on delivery
If freight costs exceed expectations, we’ll contact you before shipping
Shipping rates, eligibility, and delivery options are confirmed at checkout based on your location.
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All prices are in AUD and include GST. Payment options are shown at checkout.
If something’s not right, please contact us first and we’ll help you work through the best solution
Returns, exchanges, repairs, or credits are available for faulty or misdescribed items
Return requests should be made within 7 days of delivery
Freight charges aren’t refundable
Non-faulty returns may incur return shipping and a small restocking fee
Opened consumables (including strings and picks) can’t be returned
Returns are assessed case-by-case so we can ensure the fairest outcome for everyone.
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