Rockwell Hardness Tester – 3106 Testing Device– is a comprehensive hardness tester with high precision. The product is simple to operate and adopts the traditional weight loading method. The most well-known function of 3106 is to measure the hardness of Ball Indentation plastic test, which has been widely used by Volkswagen and other German auto manufacturers. In addition, by upgrading the software and replacing some accessories, Rockwell hardness tester – 3106 can meet the following standards listed below in our applications section.