- Natural barrier to corrosion
After cleaning your tools or if they are stored for a period of time without use it is a good idea to coat them thinly with oil to prevent rust from attacking the metal surfaces. This oil is imported from Japan and may safely be used on bonsai tools which will come into direct contact with plant tissue. It may also used on professional steel sushi knives. (Never use any inorganic or synthetic oils on your tools)
- Prevention of corrosion on black steel tools.
- Lubrication of hinges or joints which have stiffened on all bonsai tools.