The Rockwell test defines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration caused by a preload. Tinius Olsen has many types of hardness ...

4 seconds! That is how fast you can perform a test with the Versitron Rockwell hardness tester. Unlike most hardness testers, the Versitron applies both the pre-load and full load through the test ...