Best Sellers
FRTLZR CutNutOrNot – Precision Nut Slot Checker
Take the guesswork out of guitar setup with the FRTLZR CutNutOrNot – the simple, reliable tool that tells you exactly what you need to know: is your nut cut right… or not?
Designed for guitar techs, luthiers, and players who care about perfect playability, this compact tool quickly checks nut slot height with precision and ease. Just slide it into place and get an instant visual indication of whether your nut slots are correctly cut or need adjustment.
Why you’ll love it:
Instant clarity – no measuring guesswork, just a clear yes-or-no indication
Precision sizes included – comes in 1.0 mm, 1.2 mm, 1.4 mm, and 1.6 mm
Compact & practical – small enough for any toolkit or gig bag
Built for accuracy – ideal for consistent, repeatable setups
Whether you’re dialing in a professional setup or fine-tuning your own instrument, the CutNutOrNot makes nut slot evaluation fast, easy, and accurate.
Cut it right. Or know when it’s not.
PRE-SALE Offer: Shipping is expected mid-April
FRTLZR® FretKata Fret Beveling File — Sleigh-Style Precision for Guitar Frets
The FRTLZR® FretKata Fret Beveling File is a precision tool designed for fast, smooth, and accurate filing of guitar fret ends. Its katamaran-inspired “sleigh-style” design glides effortlessly along two smooth rails, minimizing resistance and providing unmatched stability during every filing pass.
Featuring dual angles — 3° on one side and 30° on the other — the FretKata handles all fret beveling needs, from subtle chamfers to more pronounced edges. The 12 cm file length ensures optimal pressure for quick, clean, and efficient fret filing.
The ergonomic polymer handle is high-grip, allowing complete control even during extended use, while the body adapts naturally to the hand, not the other way around. Constructed from the same aerospace-grade engineered polymer as other FRTLZR tools, the FretKata combines strength, durability, and comfort.
Key Features
Sleigh-Style Sliding Design
Glides effortlessly along two precision rails, ensuring smooth, stable, and controlled movement on every fret.
Dual-Angle Precision
3° on one side, 30° on the other — versatile for all fret beveling requirements.
High-Performance Aerospace-Grade Polymer
Durable, lightweight, and long-lasting for professional use.
Ergonomic High-Grip Handle
Textured handle surface maximizes grip and control, reducing fatigue during long sessions.
Efficient Fret Filing
12 cm file length allows precise pressure on fret ends, enabling fast and clean beveling.
Specifications
Material: High-performance engineered polymer (aerospace-grade)
File Length: 12 cm
Angles: 3° / 30° dual-sided
Rail System: Sleigh-style twin rails for smooth gliding
Handle: Ergonomic with high-grip surface
Application: Guitar fret end filing and beveling
Package Contents
1 × FRTLZR® FretKata Fret Beveling File
Made in Germany — engineered for precision, stability, high grip, and ergonomic comfort, the FRTLZR® FretKata delivers fast, safe, and professional-quality fret work for guitarists, luthiers, and technicians alike.
Upgrade your fretwork with the FRTLZR® Fret End Dressing XXXL File, a premium luthier tool engineered for precision, comfort, and long-lasting performance. Designed for professional guitar builders, repair technicians, and demanding players, this file delivers superior results when dressing and smoothing fret ends.
Precision Diamond Filing – 300 Grit
The FRTLZR® XXXL File features an extra-long 150 mm diamond-coated filing surface with 300 grit, ideal for clean, controlled fret end dressing. The fine diamond coating ensures smooth material removal while maintaining maximum accuracy on stainless steel, nickel silver, and EVO gold frets
Extra-Large Filing Area = Extended Lifetime
With its 150 mm filing length, this XXXL file offers twice the usable surface area compared to standard diamond fret files. The result is significantly longer tool life, consistent cutting performance, and better value over time.
Adjustable Sliding Grip for Maximum Ergonomics
Unlike conventional fret files, the ergonomic grip can slide across the entire 150 mm filing area, allowing you to position it exactly where you need it. This ensures optimal balance, comfort, and control in every working position—especially useful during long fret dressing sessions.
Made in Germany – Premium Quality You Can Trust
Manufactured in Germany, the FRTLZR® Fret End Dressing XXXL File stands for exceptional craftsmanship, durability, and precision. Every detail is designed to meet the highest professional standards.
Key Features:
Extra-long 150 mm diamond-coated filing area
300 grit for precise and smooth fret end dressing
Twice the lifetime of standard diamond fret files
Sliding ergonomic grip for perfect handling and control
Suitable for all common fret materials
Made in Germany
The FRTLZR® Fret End Dressing XXXL File is the ultimate solution for efficient, precise, and comfortable fret end finishing—built to perform, built to last.
Eliminate Fret Buzz and Perfect Your Guitar Setup with FRTLZR® Tools
Are you tired of dealing with fret buzz or struggling to achieve the perfect guitar setup? Whether you're a professional luthier, a guitar tech, or a DIY enthusiast, having the right tools is essential for optimizing your guitar’s performance. That’s where FRTLZR® tools come in!
Our expertly designed products help you tackle common setup challenges with ease and precision. We make tools for guitarists first, and for luthiers and guitar techs alike — all FRTLZR® products manufactured in Germany for reliability and simplicity.
Take control of your instrument’s maintenance and get professional results at home or in the workshop with FRTLZR®.
Why Choose FRTLZR for Your Guitar Setup Needs?
Engineered for Accuracy: Each tool is crafted with precision to ensure your guitar plays and sounds its best.
Durable and Reliable: Built to last, our tools are trusted by professionals and hobbyists alike.
Eliminate Fret Buzz: With the right setup, fret buzz becomes a thing of the past.
Setup like a Pro
Introducing the FretBanger: Elevate Your Playing with Precision!
Unleash the full potential of your guitar's fretboard with this Fretrocker, a 2 mm thick precision tool meticulously crafted in Germany. Designed to provide a superior fret assessment experience, this tool is your key to achieving a perfectly leveled and buzz-free fretboard.
Key Features of this Fretrocker:
German Precision: The FretBanger is precision-made in Germany, renowned for its craftsmanship. Crafted from 3 mm metal, its durability and accuracy are second to none.
String Action Gauge: This essential tool comes with a built-in string action gauge, allowing you to measure the height of your strings with ease. Achieve the perfect action for your playing style effortlessly.
High-Precision Design: The 2 mm stainless steel construction ensures stability and longevity. The perfectly grounded edges guarantee high precision, enabling you to identify and address any uneven frets accurately.
Effortless Fret Assessment: Simply place the FretBanger over your frets and gently bang it back and forth. The polished surface and ergonomic design make spot-leveling and identifying dead spots a breeze.
Versatile Compatibility: Suitable for all guitar types, this Fretrocker is a must-have for both beginners and seasoned players. Ensure optimal playability and tone across your entire fretboard.
Revolutionize your setup routine and bid farewell to dead spots. Elevate your playing experience with the FretRocker – where German precision meets unparalleled craftsmanship. Order yours now and take control of your fretboard like never before!
FRTLZR® Radius Gauge with Fret Slot Depth Indicators
Ensure your guitar’s fretboard radius and fret depth are perfectly aligned with the FRTLZR® Radius Gauge. Made from high-grade aluminum and crafted in Germany, this precision tool is essential for guitarists and luthiers seeking accurate measurements and optimal performance.
Features
Precision Measurement: Accurate fretboard radius and fret slot depth indicator.
High-Grade Aluminum: Durable and long-lasting construction.
Dual Functionality: Measures both radius and fret slot depth.
Versatile Use: Suitable for electric, acoustic, and bass guitars.
Fair Trade Tool: Made in Germany
Benefits
Enhanced Playability: Achieve the ideal fretboard radius and fret depth for optimal performance.
User-Friendly: Suitable for both beginners and professionals with straightforward operation.
Professional Results: Perfect for consistent and accurate guitar setup and maintenance.
Why Choose FRTLZR®?
The FRTLZR® Radius Gauge with Fret Depth Indicators stands out for its precision, durability, and ease of use. It’s an indispensable tool for any guitarist or luthier looking to maintain their instrument’s playability and performance.
Achieve perfect string action and setup your guitar / bass with our Premium String Action Gauge. Crafted for accuracy and durability, this essential tool is designed for luthiers and guitar enthusiasts who demand precise measurements for optimal playability and optimal readability.
Features
Precision Measurement: Ensures accurate string height adjustment for flawless performance.
High-Quality Material: Made from anodized high quality aluminium for durability and long-lasting use.
Easy-to-Read Markings: Clear, etched markings for quick and easy measurements.
Versatile Use: Suitable for electric, acoustic, and bass guitars.
Compact Design: Portable and easy to carry in your toolkit.
Benefits
Improved Playability: Helps in setting the ideal string height, reducing buzz and enhancing playability.
Enhanced Comfort: Provides a comfortable playing experience with properly adjusted string action.
Professional Results: Achieve a professional setup at home or in the workshop.
What's Included
1x Premium String Action Gauge
Why Choose Us?
Our Premium String Action Gauge is made in Germany and stands out for its accuracy, ease of use, and durability. It's the perfect tool for anyone serious about guitar maintenance and setup.
Unlock Your Guitar's Potential with Polished Frets
When you pick up your guitar or bass you want to be inspired, not frustrated by dull, rough frets. Polishing your frets is the simple, high‑impact step that improves sound, longevity, playability and appearance. Fret polishing is a genuine game‑changer — and it's easier than you think.
Why polished frets matter
Better sound
A smooth, mirror‑like fret surface produces a clearer, more consistent tone. Rough or oxidised frets can create scratchy noises and uneven contact with the string. Polished frets let the string glide cleanly, reducing fret noise and string breakage while improving sustain and clarity.
Improved longevity
Polishing removes microscopic pits and grime that accelerate corrosion. Regular maintenance prevents long‑term damage and helps keep frets in service for many years, postponing costly refretting or repairs.
Professional look
Shiny frets make a guitar look cared for and stage‑ready. A well‑presented instrument invites practice and performance — it’s no surprise most pro players keep their frets polished.
Precise playability
A glassy fret top gives you consistent contact for cleaner bends, smoother vibrato and more accurate fretting. Playing becomes more confident and effortless, especially during fast runs or expressive techniques.
Introducing the FRTLZR® Fret Polishing System
You don’t need a workshop to get pro results. The FRTLZR® Fret Polishing System is engineered in Germany to make fret maintenance straightforward and effective for players and luthiers alike. Designed with ease of use and precision in mind, the kit delivers a professional finish at home — without risking surrounding wood or fretboard binding.
What you get with FRTLZR®:
Tools and abrasives for guitars and basses to achieve a uniform polish.
Safe, controlled polishing that protects fretboard material and inlays.
A straightforward process: clean and polish Playability is the single most important factor in learning and playing the guitar: when a neck feels right, frets are smooth and action is set correctly, progress comes faster and playing becomes a joy rather than a struggle. Frtlzr offers highly ergonomic, precision-made tools—designed in Germany—for both luthiers and guitarists, enabling easy maintenance and refinements that keep instruments comfortable, responsive and inspiring to play. Take responsibility for your tone and technique with tools that help you achieve the best possible playability.— repeat as needed.
German engineering and quality, trusted by players and luthiers worldwide.
Don’t let dirty, corroded frets hold you back. Take responsibility for your instrument’s upkeep and rediscover how inspiring it feels to play a guitar that looks, sounds and performs its best.
The FRTLZR® Fret Polishing Kit — professional results, made in Germany, made for guitarists.
FAQ for the FRTLZR Fret Polishing System
The FRTLZR Fret Polishing System is the ultimate solution for achieving polished frets on your guitar. It's a comprehensive kit designed to restore the shine and smoothness of your frets. By using the included polishing compounds and tools, you'll remove tarnish and oxidation, ensuring your frets look and perform at their best.
"With the FRTLZR Fret Polishing System, your guitar frets will gleam like new or even better, and your playing will reach new heights." – Johann, Guitar Enthusiast
The frequency of fret polishing depends on your playing habits and the condition of your frets. As a general guideline, we recommend using the system every 3-6 months for maintenance. However, if your frets are heavily tarnished or show signs of oxidation, you may choose to polish them more frequently. Some users even polish their frets every time they change their strings.
"Regular fret polishing is the key to maintaining a brilliant guitar tone and superb playability." – Tim, Guitar Technician
Absolutely! Our Fret Polishing System is designed to work effectively on all types of guitars, including electric, acoustic, and bass guitars. It is suitable for various fret materials, such as nickel-silver, stainless steel, and brass. Plus, it covers a wide range of fret widths, from regular 2.0 mm to jumbo 2.8 mm, and probably a bit more.
"No matter what type of guitar you play, the FRTLZR Fret Polishing System has you covered." – Dennis, Guitarist
While our system is excellent for restoring shine and removing minor blemishes and scratches, it may not eliminate deep carves. For significant fret damage, we recommend consulting a professional guitar technician, unless you're confident in your DIY skills.
"For flawless frets, the FRTLZR Fret Polishing System is your best friend. But remember, deep carves may need extra attention." – Tim, Guitar Technician
Absolutely! Our Fret Polishing System is designed with both beginners and experienced guitarists in mind. Clear instructions are provided to guide you through the process, making it easy to achieve professional results. Even if you're new to fret polishing, you'll be amazed at how straightforward it is to use.
"You don't need to be a pro to get pro-level results with the FRTLZR Fret Polishing System." – Ecaterina, Beginner Guitarist
The longevity of the polishing compounds depends on the frequency of use and the size of your guitar's frets. Generally, our high-quality compounds have an extended lifespan and provide numerous polishing sessions before needing replacement. If you find yourself needing more, additional polishing grids can be ordered separately.
"The FRTLZR Fret Polishing System is an investment that keeps on giving, thanks to its long-lasting compounds." – Steve Guitar Care Enthusiast
We're committed to environmental responsibility. Our Fret Polishing System is produced using 3D printing technology, which minimizes waste. The reusable components and environmentally friendly packaging contribute to reducing environmental impact.
"You can enjoy pristine frets and a clear conscience when you choose the FRTLZR Fret Polishing System." – Tim, Guitar Technician
Our Fret Polishing System is intended for use on all kinds of fretboards. However, we recommend avoiding contact with coated or finished fretboards to prevent any potential damage to the coating. To protect the fretboard during the polishing process, you can use some tape to avoid scratches or damages.
"A little precaution goes a long way in preserving your guitar's fretboard." – Tim, Guitar Technician