The ME-421SC is a 12,00 RPM, 4.5 horsepower 400 Hz Electric Motor designed for use on the CD-510A and CD-510N 8-speed Core Drill gearboxes.
An ME-412SC Motor on the CD-510A gearbox gives output speeds from 150 RPM to 1,600 RPM. CD-510N output speeds are slightly lower. All output speeds are listed on CD-510A and CD-510N catalog sheets.
* A special slip clutch protects the mating gearbox.