Acoustic Guitar Soundboard Repair Jack — Magnetic Bracing Support Tool
$110.49$129.65
A precise repair demands a precise tool. This soundboard and back crack repair support jack is designed for luthiers and...
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A precise repair demands a precise tool. This soundboard and back crack repair support jack is designed for luthiers and guitar enthusiasts who take restoration seriously — a height-adjustable, groove-fitted jack that holds bracing firmly in place while glue sets, so loose sound beams and small wooden blocks are reattached cleanly and without slip. Available in Black and White, it is a compact but essential addition to any acoustic guitar repair kit.
Magnetic Bracing SupportHeight-Adjustable JackGroove-Fit DesignAcoustic Guitar RepairBlack & White Variants
Size Guide & Compatibility
Size
Metric
Imperial
Best For
Large
Adjustable height via elastic screw nut; fits standard full-size acoustic body depth
Standard full-size acoustic guitars (body depth approx. 4–5 in)
Full-size acoustic guitars; dreadnought, concert, auditorium body styles
Exact fit will depend on your guitar body depth. Sold individually — one jack per order.
Not Best For
3/4 or travel-size acoustic guitars — the large format may not fit the shallower body depth
Electric or semi-hollow guitars — this tool is designed specifically for acoustic instrument bracing repair
Classical guitars with unusually narrow internal depth — verify your body dimensions before ordering
Professional luthier workshops requiring multiple jacks simultaneously — sold individually
Product Details
Material: Rigid structural body with magnetic bracing mechanism
Finish / Colour: Available in Black or White
Style: Luthier repair jack — large format
Height Adjustment: Elastic screw nut for effortless height calibration
Groove Design: Grooves on both top and bottom for a secure, stable fit against the instrument body
Compatible With: Full-size acoustic wood guitars — dreadnought, concert, auditorium, and similar body styles
Installation: No permanent installation; tool is positioned, adjusted, and removed after the repair adhesive has set
Package Includes: 1 × repair support jack
Why This Tool
Precision where it matters: The height-adjustable elastic screw nut lets you dial in exactly the right pressure against the brace — no guesswork, no over-compression that could damage the top or back.
Magnetic bracing mechanism: The integrated magnetic support holds the brace firmly in position while the adhesive sets, keeping your repair aligned without requiring a second set of hands.
Secure groove fit: Grooves on both the top and bottom faces grip the instrument surfaces cleanly, eliminating the slipping or rocking that makeshift solutions are prone to.
Simple, repeatable process: Apply adhesive, position the jack, adjust height, wait for the glue to cure, remove — a clean workflow that produces professional results even for the home restorer.
Built for acoustic wood instruments: Designed specifically around the internal geometry of acoustic guitar bodies, this is a tool that understands the instrument it serves.
Care & Maintenance
Cleaning: Wipe all surfaces clean of adhesive residue after each use with a dry or slightly damp cloth. Do not allow glue to cure on the jack surfaces.
Avoid: Immersion in water or solvents that could compromise the structural integrity or magnetic components.
Screw nut: Keep the elastic screw nut free of debris; turn it smoothly through its full range periodically to maintain easy height adjustment.
Storage: Store in a dry environment away from strong magnetic fields that could affect the bracing mechanism over time.
Periodic checks: Inspect the groove surfaces before each use to confirm they are clean and free of cured adhesive, which could affect grip stability during a repair.
FAQ
What type of guitars is this compatible with? This jack is designed for full-size acoustic wood guitars — dreadnought, concert, auditorium, and similar body styles where the internal depth accommodates the large format. It is not suited to electric, semi-hollow, or travel-size guitars.
Do I need any other tools to complete a repair? You will need appropriate wood adhesive for the specific repair (e.g. hide glue or PVA wood glue), clamps or a second jack if addressing a long brace, and standard luthier tools for accessing the guitar interior. The jack itself handles the bracing support function.
How does the height adjustment work? An elastic screw nut on the jack body allows smooth, tool-free height adjustment. Turn to increase or decrease the jack's height until it makes firm contact with the brace, applying even pressure without over-compressing the instrument.
Is the magnetic function strong enough to hold during a repair? The magnetic bracing mechanism is designed to maintain alignment throughout the glue curing period. For heavy structural repairs or unusually wide braces, we recommend testing fit before applying adhesive to confirm the jack provides sufficient coverage.
Is this sold individually or as a set? Sold individually — one jack per order. If your repair requires multiple jack positions simultaneously, order accordingly.
Shipping & Handling
Your repair jack is carefully packaged to arrive in perfect working condition. We ship internationally with tracking as standard.
Estimated delivery: 7–21 business days depending on destination
Full tracking provided at dispatch
If your item arrives damaged, notify us within 24 hours with clear photos so we can resolve it promptly
Please inspect the item before first use
VAT and customs duties are prepaid on most standard-sized orders.
Dimensions and height range are approximate; minor tolerance variations are normal and do not constitute a fault. Colour appearance may vary slightly depending on screen calibration. Sold individually — one jack per order. Compatibility is with full-size acoustic wood guitars; verify your guitar body depth before ordering. This tool is intended for use during adhesive-based bracing repairs only and should be removed once the adhesive has fully cured.
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In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
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