Two-Way Radius Sanding Block for Fret Leveling - 10ft + 14

In this review of the Two-Way Radius Sanding Block for Fret Leveling, the bottom line is simple: this is a purpose-built luthier tool for guitar and bass players who need a compact, heavy-duty sanding beam that matches common fingerboard radiuses. It is best for DIY repairers and workshop techs who want a single aluminum block that offers two radiuses in one unit. The review finds the block accurate for matching fretboard arcs and notes its sturdy CNC-machined aluminum construction as the primary reason to buy.

Key Features

• Two radiuses: The block has both 10' and 14' radiuses on the same tool so one block covers two common fretboard arcs.
• CNC machined aluminum: Durable metal construction resists deformation and gives a solid, confidence-inspiring weight during sanding.
• Grooved grip side: A groove side design improves hand hold and control for more consistent passes across the fingerboard.
• Compact dimensions: At approximately 200mm by 72.7mm by 27.6mm the sanding beam is small enough to fit in a toolbox but long enough to span several frets for even leveling.
• Two-way functionality: Using either side lets the same tool be flipped to work either radius without swapping equipment, saving time in the shop.

Who It's For

This sanding block suits luthiers, hobbyist builders, and repair technicians who frequently level frets or true fingerboards on guitars and basses that use 10' or 14' radiuses. Its metal build and shared radiuses make it especially useful in small shops where versatility and durability matter.

It is not the right purchase for someone who needs other radiuses, expects included sandpaper, or requires a lightweight plastic tool for occasional home use; buyers should confirm their instrument's radius before ordering.

Pros & Cons

Pros

• Accurate radius matching that customers reported led to consistent sanding results.
• Solid CNC-machined aluminum gives good weight and a premium feel while resisting deformation.
• Dual-radius design reduces the need to buy multiple blocks and speeds workflow in the shop.
• Compact size is convenient to store and easy to handle for controlled passes.

Cons

• Sandpaper is not included, so additional supplies are required to begin work.
• Some customers disagreed on long-term durability, so heavier daily commercial use may reveal wear over time.

Specifications

Brand	guyker
Material	CNC machined aluminum
Radii	10' and 14'
Dimensions	200mm x 72.7mm x 27.6mm (7.87 x 2.86 x 1.09 in)
Included	1 piece sanding block (sandpaper not included)
Grip	Groove side design for comfortable hold

Our Verdict

The Two-Way Radius Sanding Block is a practical, value-oriented tool for anyone who works on 10' or 14' radius fingerboards; its solid aluminum build and accurate radiuses make it a reliable shop addition. Buyers should supply their own sandpaper and confirm instrument radius, but for its price and function this sanding beam offers sensible versatility for hobbyists and small repair shops.

Frequently Asked Questions

Does sandpaper come with the block?
No. Sandpaper is not included; users need to purchase compatible abrasive strips or sheets separately.

What radiuses are on the block?
The block provides two radiuses: 10' and 14', covering two common fretboard arcs for guitar and bass.

Is the tool likely to deform with regular use?
The block is CNC-machined from aluminum and is designed to resist deformation, though a few customers reported differing views on long-term durability under heavy commercial use.