During the Ross Flex Test, the rollers hold the pierced end of the test specimen, allowing it to move freely and bend over a 10-mm (0.4 in.) diameter rod through a 90° angle, as industry standards require.

The rollers ensure that the test specimen does not slip or move out of position during the test, leading to inaccurate test results and other potential issues. The tester clamps the other end of the test specimen to the holder arm, ensuring it remains securely in place throughout the testing process.

The use of the rollers in the Ross Flex Tester also helps to prevent the test specimen from developing cracks or other forms of damage due to friction between the specimen and the testing equipment, in its turn ensuring that the test results are accurate and reliable.

To sum up, the two rollers in NextGen Material Testing Ross Flex Tester ensure that the test specimen or specimens are held securely and bend freely during the test.

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