OUR LUTHIER TOOLS ARE 100% ORIGINAL. For any questions or information, please feel free to contact. 

Feather file for nut



This file helps to shape or reshape the string slots of the nut. Shaping the slots correctly is important in order to let them hold the string properly and at the right height for best playability. It is made in Japanese Steel, resistant and precise. The feather file is essential for shaping the slots of the thinner strings while the other slots can be shaped with larger files or other tools that might be easier to "improvise".




  • 1

Price list

REMINDER: to buy our tools please make sure to visit the How to buy page first. Thank you 

-Prices are in USD

-Shipping price is typical for 1 tool and 1 Kit

-RED is out of stock

-RR Kit is accessory (sold only with a leveling tool)

-Final shipping price may vary depending on volume, weight and final destination of the order

R.M.KATANA for guitar $225 +Shipping  $40
R.M.KATANA for bass $255 +Shipping  $50
R.M.nanoKATANA *uke $165 +Shipping  $36
R.M.BUZZ-Killer spot lev.  $80 +Shipping  $25
R.M.LITE for guitar  $40 +Shipping  $35
R.M.LITE for bass  $55 +Shipping  $38
RR Kit (reload/refinishing)  $38 Accessory  
LittleBone #400 grit  $25 +Shipping  $18
LittleBone #150 grit  $20 +Shipping  $18

LittleBone DoubleAngle #400 grit

 $28 +Shipping  $18
LittleBone DoubleAngle #150 grit  $28 +Shipping  $18

LittleBone DoubleGrit


 $28 +Shipping  $18
LittleBone ice #320 grit  $28 +Shipping  $18
LittleBone ice #150 grit  $28 +Shipping  $18
LittleBone ice Special  $35 +Shipping  $18
Digital Action Gauge  $34 +Shipping  $18
FRET RAIL mini  $18 +Shipping  $18
Feather File for nut   $20 +Shipping  $18


About Rectify Master

RECTIFY Master is a brand specializing in Fretboard Optimization. It focuses on research and development of quality set-up systems for a more fluid playing, with over 30 years experience.




TOKYO, Japan

Copyright © 2021 RECTIFY Master. All Rights Reserved.