https://www.lanequalitys.com/products/kht800-a-automatic-rockwell-hardness-tester.html KHT800-A is a new shaped, advanced Automatic Rockwell Hardness Tester, which combine previous function with stable design, easy operation. So this rockwell tester is a popular one in bench hardness tester with highly accurate, automatically, easy installation, quick test's advantages.All Rights Reserved