GT-7261
Table Tennis Ball Roundness Tester

This machine is designed to measure the roundness of a table tennis. An indenter touches the peak of the ball with its lower end . The difference between the value indicated by the dial gauge and the value after turning 90o is the roundness deviation.
　　
　　Adopted an imported and high precision dial gauge, this machine can measure the roundness deviation of the table tennis accurately. Two standard steel balls are provided for calibrating the dial gauge and the balls being tested so as to ensure an accurate test result.