# M Y Fly Young Guitar Luthier Tool Set with Fret Leveling Beam and 32-Blade Feeler Gauge

Check fret height, polish frets, and measure guitar setup with this luthier tool set, featuring an aluminum beam and four sanding grits.

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- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-24T02:07:57.422Z
- Brand: M Y Fly Young
- SKU: ofertitastop-us-157058
- Category: Hardware > Tool Accessories
- Source store: amazon US
- Active deal: Yes
- Price: 12.49 USD
- Previous price: 24.99 USD
- Discount: 50%
- Rating: 4.1 / 5
- Reviews: 65

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

The aluminum-alloy fret leveling beam comes with self-adhesive sandpaper strips in 400, 600, 1000, and 1200 grit. It gives you several abrasives for fret polishing in one guitar maintenance set.

The kit brings together tools for fret work, setup measurements, and fretboard protection. A crowning file, fret rocker, feeler gauge, action ruler, string spreaders, and fingerboard guards support different steps of a DIY guitar project.

Use the string spreaders to move strings aside while working on the frets or cleaning the fretboard. The included storage bag keeps the set’s tools together between jobs.

## Where it shines

This set is built around hands-on guitar and bass maintenance. The fret rocker has four straight edges to help identify uneven fret heights and locate a possible source of fret buzz. After leveling, the stainless-steel crowning file is designed for crowning frets, with the same filing size on both edges and a rubber handle for a secure hold.

For a setup check, the pocket-sized action ruler measures string height, bridge saddle height, saddle slot depth, pickup polepiece height, fret slot depth, and nut height. Its printed conversion chart for string action at the 12th fret keeps a useful reference on the tool itself. The 32-blade feeler gauge measures from 0.0015 inch to 0.035 inch, giving you a range of gauges for spacing measurements.

Rather than assembling separate tools for each task, this kit groups fret-leveling, crowning, measuring, and protection tools together. For example, during a fretboard cleanup, you can spread the strings away from the work area, protect the board with a guard, and use the leveling beam and sanding paper on the frets.

## Key points

The leveling beam is made from aluminum alloy and has self-adhesive sandpaper strips on four sides. The included grits—400, 600, 1000, and 1200—cover different polishing needs. The stainless-steel fret rocker provides four straight edges for checking fret height, while the crowning file is also stainless steel.

The kit includes one fret crowning file, one leveling beam, one action ruler gauge, one 32-blade feeler gauge, one fret rocker, two string spreaders, two fingerboard guards, eight replacement sanding papers, and a portable storage bag. The guards help protect a guitar or bass fretboard from scratches during filing and polishing. The feeler gauge uses tempered steel, its blades are covered with light oil to help prevent rust and sticking, and a thumb screw supports blade removal and protection.

## Getting the most from it

Work with the strings moved aside and use the fingerboard guards where you are filing or polishing. Choose among the beam’s included sandpaper grits for the polishing task, and use the rocker to check for uneven frets. The ruler and feeler gauge serve different measurement needs: use the ruler for setup dimensions such as string height, and the feeler gauge for small spacing measurements. Keep the tools and replacement papers together in the storage bag so they are ready for the next maintenance session.

## What to clarify

**What can the action ruler measure?** It has scales for string height, bridge saddle height, saddle slot depth, pickup polepiece height, fret slot depth, and nut height. A string-action conversion chart for the 12th fret is printed on one side.

**What is the fret rocker used for?** Its four straight edges help detect discrepancies in fret height and identify uneven frets that may be associated with fret buzz.

**What sanding grits are included?** The leveling beam uses self-adhesive sanding strips in 400, 600, 1000, and 1200 grit, and the kit includes eight replacement sanding papers.

## Should you buy it?

For guitarists who want to handle fret maintenance and setup measurements themselves, this set brings the key tasks into one organized kit. Its combination of leveling and crowning tools, measurement gauges, string spreaders, and fretboard guards supports practical work on both guitars and basses, from checking fret height to polishing with the included grits.

## Images

![M Y Fly Young Guitar Luthier Tool Set with Fret Leveling Beam and 32-Blade Feeler Gauge — 1](https://www.ofertitastop.com/i/4qE5Jz0ymS7J20m1BubPOvt2ZLTdSg5HAGhbo1NmFLWgch_Dx1bgQX7WVRIHNE0BlF0hwFMuaLt6jTGGTRflOlcUW6HurkjgFOsIjCuY5Oz443fFRv2ajx0gxg.jpg)

![M Y Fly Young Guitar Luthier Tool Set with Fret Leveling Beam and 32-Blade Feeler Gauge — 2](https://www.ofertitastop.com/i/93Bs-_JMjjirC6WLzSRDuG9PkJHf9h47NcQOMPsGXU28gAxVpoHB7-7eR6ifyH9O6k84D1UIPy5EWxahgxiB5M5zhacvnelOMgOqaMLh1mK0qHGHYkKf-caOtQ.jpg)

![M Y Fly Young Guitar Luthier Tool Set with Fret Leveling Beam and 32-Blade Feeler Gauge — 3](https://www.ofertitastop.com/i/r7L81VDGpaayBJPD-RvU8BcFsO-jm17ioRy7zXoX5UO2ehuUB5_LogfJFv8QZklOn8eoOJODnBnC_1kmy1UWLVnWE9aoMXOwUHtC3veM4UThtkMF3TdoQSq7BA.jpg)

![M Y Fly Young Guitar Luthier Tool Set with Fret Leveling Beam and 32-Blade Feeler Gauge — 4](https://www.ofertitastop.com/i/UIlfRXfGuajfCjvdGqOlybBDp8uO4LISzFCigyJjQoVsiHD6wu_iPOf4GQWWVNyUDfxWyAXVod52tWqeQHozoV-tquJs00IStyInZL7oeeF3XudzsCEoBeCLRg.jpg)

![M Y Fly Young Guitar Luthier Tool Set with Fret Leveling Beam and 32-Blade Feeler Gauge — 5](https://www.ofertitastop.com/i/iAthoV5m9SaDXVNyAkQRktgMRaGEEE1JXh4OKXqonB5oaj1MK-A1h6iWeo37b3Jk_8CHqdr7YAouCLxNmTaoz69qquw-ZSinOtL1sylgusPFAyAY-QvE5ZwBXw.jpg)