Feature:1. High‑quality black marble base, it can provide stable support for the experiment on the platform and ensure the accuracy of the experiment.2. Test bench for tempered glass, it has high strength, can effectively ensure the safety of the experiment, and the exquisite and easy‑to‑observe appearance can provide convenience for the experiment.3. Accurate measurement results, its test process is stable, each measurement will not have too much error, and it can be used for high‑standard testing.4. Reasonable structure, its small shape, beautiful appearance, simple operation, lightweight and portable, can help make your experiment easier.5. It has a wide range of applications and is suitable for daily and industrial hardness testing in combination with A‑Type and C‑Type hardness testers to better understand the characteristics of materials.How to Use:Place the sample on the circular platform, loosen the handle on the cross arm, adjust the height of the cross arm until the bottom surface of the presser foot is about 5 mm from the measured surface of the sample, and tighten the cross arm to lock the handle. Press down on the handle to make the hardness tester press down under the gravity of the constant load weight. When the presser foot and the sample are in full contact with each other within 1 second, the value displayed by the hardness tester is&nb