The test surface moves underneath the AA-827 roller contact point. The roller allows for less friction and continuous measurement. Used with foils, sheets of flat material, rolled metal strips etc. An included lock nut will keep this roller aligned.
- Directly compatible with the GS, BS and DG series gages.
- Roller 9mm dia. (M2.5) Contact Point
- Material : SUj2, high-carbon chromium bearing steel
- SUj2 has high and even hardness, and excellent abrasive resistance and fatigue strength