




Gereedschap-Schuurstaaf Aluminium Fretbalk Onder snaar Leveler - 9” Fret Schuur Nivelleer
SKU:RTS-tool-sandingbeam-228mm
PRODUCT DESCRIPTION
Level guitar and bass frets accurately while the strings remain in place. This CNC-machined aluminum understring fret leveler provides a straight, stable working surface for fret leveling, repair, setup, and maintenance, with three length options for different fretwork applications.
Key Features
- Understring design: Designed for fret leveling and maintenance work while allowing the strings to remain positioned over the fretboard.
- CNC-machined aluminum construction: Provides a rigid and consistent leveling surface suitable for luthier, repair, and setup work.
- Three length options: Available in 114 mm / 4.5 in, 228 mm / 9 in, and 457 mm / 18 in to suit different fret leveling applications.
- Guitar and bass use: Suitable for electric guitar, acoustic guitar, and bass fret maintenance where the tool dimensions are appropriate.
- Size reminder: Please select the required tool length and review the dimensions shown in the size reference before ordering.
Technical Specifications
| SKU / Model | Tool-Sandingbeam |
| Product Type | Understring Fret Leveler |
| Suitable For | Guitar & Bass Fret Leveling |
| Material | Aluminum |
| Manufacturing Process | CNC Machined |
| Length Options | 114 mm / 4.5 in; 228 mm / 9 in; 457 mm / 18 in |
| Cross-Section Size | Approx. 37 mm × 19 mm |
| Package Quantity | 1 Piece |
Compatibility Notes
Important: This is a general-purpose luthier and fretwork tool rather than a model-specific replacement part. Please select the appropriate length for your intended fret leveling or repair procedure.
Package Includes
- 1 x Guyker Aluminum Understring Fret Leveler in the selected size.
Installation Note
Before use: Confirm that the selected tool length and dimensions are suitable for your fretwork procedure. Use appropriate fret-leveling technique and abrasive material for the instrument being serviced.
Size Reference
Important: Please refer to the size chart below before ordering. Available lengths are 114 mm, 228 mm, and 457 mm, with an approximate cross-section of 37 mm × 19 mm.

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FAQS
Do you class a reverse headstock guitar as a left hand guitar?
How do I determine the right size/fit for a specific accessory?
Can you provide more details about the materials used in your products?
At Guyker, we prioritize the use of high-quality materials to ensure the durability and performance of our products. While the specific materials used may vary depending on the accessory, we commonly utilize materials such as:
■ Metals: We often use materials like stainless steel, aluminum, and brass for hardware, bridges, and other metal components.
■ Plastics: Certain accessories may incorporate durable and impact-resistant plastics such as ABS or polycarbonate for knobs, pickguards, and other components.
■ Woods: Some accessories, like guitar knobs or picks, may be made from various types of wood, including rosewood, ebony, or maple.
For more detailed information about the materials used in a specific product, we recommend reviewing the product descriptions or reaching out to our customer support team at [support@guyker.com] for further clarification.
Do you offer international shipping?
Yes, we offer international shipping to customers worldwide. When placing your order, please ensure that you provide accurate international shipping information, including your complete address and contact details.
Please note that international shipping may be subject to customs duties, taxes, and additional fees imposed by the destination country. These charges are the responsibility of the recipient and may vary depending on the country's customs policies.
What is your process for returning or exchanging a product?
To initiate a return or exchange, please follow these steps:
■ Contact our customer support team at [support@guyker.com] or visit our website's Returns/Exchanges page.
■ Provide your order details and the reason for the return or exchange.
■ Our customer support team will guide you through the process and provide you with a return/exchange authorization if applicable.
■ Follow the instructions provided, including packaging the product securely and attaching the necessary labels or documentation.
■ Ship the product back to us using a traceable and insured shipping method.
■ Once we receive the returned product and verify its condition, we will process the return or exchange accordingly.
Can I return or exchange a product if it's been used?
In most cases, products that have been used or show signs of wear may not be eligible for return or exchange unless there is a defect or error on our part. We recommend reviewing our specific return/exchange policy or contacting our customer support team at [support@guyker.com] to determine the eligibility of your particular product.
Do I need to cover the return shipping costs?
The responsibility for return shipping costs may vary depending on the reason for the return or exchange. In some cases, such as if the product is defective or if we made an error, we will provide a prepaid shipping label or reimburse your return shipping costs. However, if the return or exchange is due to a change of mind or a non-defective product, you may be responsible for the return shipping costs. We recommend reviewing our return/exchange policy or contacting our customer support team at [support@guyker.com] for specific details regarding return shipping costs.

Gereedschap-Schuurstaaf Aluminium Fretbalk Onder snaar Leveler - 9” Fret Schuur Nivelleer
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