810-193-31A Mitutoyo Rockwell Hardness Tester HR-430MRMitutoyo's Rockwell Hardness Testing Machine Mitutoyo's economy type tester loaded with the features of a more expensive tester such as an Automatic Brake and Start system that stops the application of the initial (Minor) test force and starts the total (Major) test force cycle. Dial Selection of total test force. The newly designed frame provides maximum clearance for positioning the workpiece. A flat table is all that is needed for mounting these