Detailed Product Description 3M9916: The machine is special equipment for regrinding rod big end composition surface. LFM75: The machine ismainly used for grinding contact surface of connecting rods of automobiles&tractors. Model LFM75 3M9916 Width of connecting rods ground: 20-75m 20-65mm Overall dimension(LxWxH): 690x490x565mm 550x400x500mm