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Aluminum, brass, steel, diamond grit

Works straight or with relief


Fret leveling with strings on and off

Adjustable relief

Reference fret level 


Overall dimensions             mm 100x21x12

Base dimensions                mm  100x6

Standard grit                   #400 diamond


Coming soon


FRETBLADE™ is a special fret leveling tool that includes: Reference fret level, Adjustable relief, Single fret and spot level with strings on and off. The most powerful mix for a precise, fast and easy buzz fix in true playing condition. Its light weight and compact dimensions make it easy to take it with you. FRETBLADE™ will be part of our brand new Luthier Elegance Series™. Coming soon. Stay tuned!






Luthier tools


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  • RR Kit (reload/refinishing kit)

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  • LittleBone ice

    LittleBone ice is bigger than the classic LittleBone Fret File. It is easier to hold. It lasts longer because Read More

    Say Hello to the new born 2 Corner fret file! This new tool is quite foolproof. It is aggressive Read More

    By Inventor Davide Bissoli here is a new tremolo stopper for guitar setup and repair. The TREM GUARDIAN is Read More

    DRAGONCLAW is a tuning tool designed to operate on Floyd Rose Tremolo. It was designed to leave the area Read More
  • Digital Action Gauge

    With this device you can measure the Action of the strings and the neck Relief with no need… Read More

    FRETBLADE™ is a special fret leveling tool that includes: Reference fret level, Adjustable relief, Single fret and spot level Read More

    Understring Crowning File is a proper fret crowning file designed to work underneath the string without altering the playing Read More

    UNDERSTRING FLK mini is a system designed for spot leveling the frets, or the fretboard, under strings tension. Fret Read More

    This tool is similar to a LittleBone for small or very small frets like those often installed on ukulele Read More
  • R.M.LITE

    High quality aluminum H, I or upside down T fret leveling beam working under string tension. This is one of… Read More
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About Rectify Master

RECTIFY Master focuses on research and development of innovative and quality luthier tools. Setting new standards since 2010. With over 30 year experience. Beware of imitation.




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