Titanium coating increases durability for regular diaphragm, and can be used for a wide range of polishes.

[Use]
Used for polishing hardened materials (hardened steel), cutlery and ceramics

Features:
Regular diamond files have been added with titanium coating for improved durability.
Uses a size of 8.5 inches (215 mm) which is the most popular selling file

[Precautions]
Please do not use for anything other than the intended purpose.
As this may cause the diamond to peel, please press it hard and do not sharpen.
Please do not use the file vertically against the blade as it may cause the blade to spill or peel.
Do not use on soft metals such as aluminum, copper, or brass.
For safety, please wear protective gloves and protective glasses while working.
The abrasive powder left on the surface may rust and turn brown, but this is not a problem with use.
Do not use with beauty shears, high-grade scissors, pet shears, cloth shears, and other cutlery that require high precision.
Please do not use with new blades or knives that have not been cut out.
Please do not use on items that may cause scratches.