Diamond coring motors are used with Vac-U-Rig and Dymorig diamond core rigs to drill holes into reinforced concrete. This 20 Amp model features 4.8 peak horsepower with a 450 or 900 RPM operating speed. U.S.A. Speed - No Load (RPM): 450 / 900, Volts: 120, Max. HP: 4.8, Amps: 20, Motor Protection: Clutch, Spindle Size (in.): 1 1/4 - 7, Su
