Rockwell Hardness Tester, used for hardness inspection after heat‑treatment process. It verifies whether alloy‑steel screwdriver bits reach required hardness, ensuring wear‑resistance and anti‑torsion performance. The measuring instrument is regularly calibrated for reliable test results.

1.Dial:   The large round dial is a hardness reading dial marked with A/B/C hardness scales, with the C scale being the most commonly used to detect the Rockwell HRC hardness of alloy steel (steel for screwdriver heads) after heat treatment. Two pointers, the long pointer reads the hardness value; Small pointer for range assistance.

2.Digital panel:   Digital display screen, up and down buttons, power button, used for setting and displaying test parameters

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