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The VALUE COLLECTION Z9970-1 is a Rockwell C scale diamond penetrator designed for use with hardness testing equipment. This penetrator is the indenter component that contacts the test specimen during a Rockwell hardness test, producing the indentation from which surface hardness is calculated. It is made from diamond, providing the material hardness and geometry consistency required for repeatable, accurate C scale measurements. Rockwell C scale testing is standard for evaluating heat-treated steels, tool steels, and other hard metallic materials. Machinists, metallurgists, and quality control technicians use this type of penetrator in production and inspection environments.
The Z9970-1 is suited for laboratory, shop floor, and inspection bench applications where Rockwell C scale hardness testing is performed. Rockwell C scale is commonly applied to hardened steel components, case-hardened parts, and similar materials that exceed the practical range of softer-scale indenters. This penetrator is designed to seat into compatible benchtop or portable hardness testers that accept a standard Rockwell diamond penetrator.
Designed as an OEM-style replacement diamond penetrator for hardness testers that accept a standard Rockwell C scale indenter.
Installation is performed by qualified metrology or toolroom personnel familiar with hardness tester maintenance procedures. Power down or mechanically disable the hardness tester before removing or seating the penetrator to prevent accidental load application. Follow the tester manufacturer's torque and seating specifications when securing the penetrator in the spindle. Verify calibration with certified test blocks after installing a new penetrator before returning the tester to service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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