These Bonsai Concave cutters are one of the most essential tools for maintaining your Bonsai trees and is a must for everyone tool kits.
Made from High Grade martensitic Stainless Steel
The material hardness is typically in the range of 58–60 HRC (Rockwell C), which ensures excellent edge retention and durability.
Description
Description
Made from High-Grade Stainless Steel, these Bonsai Tools have been created to a very high standard and they have a super comfortable feel and action when used to remove branches and knots below the bark surface to allow for new bark to properly grow over.
Unlike the austenitic grades of steels that are more familiar to many — such as 304, 316, and 440 .
Austenitic steel is relatively soft and tends to roll or dull at the cutting edge with use. Martensitic steel, on the other hand, provides significantly higher hardness and better edge retention, making it more suitable for cutting tools.