... 5. Impact speed: 25.m/s, 6. Pendulum Tip Size:Ф12.7mm, Ф25.4mm, 7. Clamp Diameter: Ф50mm ... Ф60mm (with O-ring), standard pendulum tip (Ф25.4mm), standard pendulum tip (Ф12.7mm) Recommend reasons of Film ... 5. Impact speed: 25.m/s, 6. Pendulum Tip Size:Ф12.7mm, Ф25.4mm, 7. Clamp Diameter: ... Ф60mm (with O-ring), standard pendulum tip (Ф25.4mm), standard pendulum tip (Ф12.7mm) Recommend reasons of Film ...