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



RECTIFY Master protects your privacy. Personal data such as e-mail, shipping address, identity, payment details, login authentication will be kept secret. None of this data will be shared with other companies for marketing or whatever similar purposes. It will be used by us to serve customers and provide them information or support about the products they bought or wish to buy. By contacting R.M. you agree that we may use your e-mail to answer to your requests. We may use authentication and logs (this data does not contain personal information) to improve our service and home page. Such data, even if basically anonymous, will be protected and kept secret as well. Our internet site also uses web analytics software like Google Analytics or similar.


​There is no public sign in option to this site. We don't have a Newsletter service as well. If you want to see what is New, please check our homepage regularly. Login to the Online Manual used to be only for buyers/owners of original R.M.KATANA, R.M.LITE, FRETRAIL, UNDESTRING Fret Leveling Kit and R.M.BUZZ-Killer. The "How to use" section is public now.


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

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