USE

It is a measuring tool that can easily test hardness from HRC40 to 65.
It is convenient to put in your pocket and use it for large workpieces or special steel materials that cannot be tested outdoors.
One set is useful when checking the hardness of the work material before cutting, checking the presence or absence of the hardness reached after heat treatment, etc.

FEATURES

A set of 6, the firmness is color-coded by the grip.
The grip has a non-slip effect and is easy to fit in your hand.
As a method of use, remove the rust from the test material in advance, and if the test object is rubbed by pushing it with a tester, if the object is scratched, the hardness will be less than the hardness indicated on the tester.
If there are no scratches, check with a tester that is one rank higher.
Since the tip of the tester is bent, it is possible to check the hardness of flat surfaces, curved surfaces, and inner diameter surfaces.