The ME-420SC is a 24,000 RPM, 4.5 HP, 400 Hz Electric Motor designed for use on the CD-510A and CD-510N 8-speed Core Drill gearboxes. It is a "special: motor for small hole drilling.
An ME-420SC Motor on the CD-510A gear box gives output speeds from 300 RPM to 3,200 RPM. CD-510N output speeds are slightly lower. All output speeds are listed on CD-510A and CD-510N catalog sheets.
A cast aluminum cover bolts over the output side of this motor to protect the gear and bearing from dirt when it is not mounted on the gearbox.
* A special slip clutch protects the mating gearbox.