Total quenching （ hardness HRC 48-52 ） SUS420J2 material stainless steel is a high-precision made from hardened stainless steel top quality products.
To ensure high accuracy and durability, the jaw tips are tempered. The scale etchings are clear, and easy to read.
These useful tools are Matsui originals, which allow marking without a ruler. They may be used with items of various shape, including parallel, vertical, cylindrical, objects with rounded corners, etc.