Made of aluminum, artificial marble.

The molybdenum high-speed is resistant to shock and heat. The blade is chip resistant and break-resistant.Grind with a grinder. (It will not come back to tempering even if it gets heat.)OK to 600 degrees Celsius) of course it can be sharpened with a whetstone. It is also sharp and will cut for a long time.The blade has a thin finish, so it is good to bite.