10,000-22,000 RPM, Includes Two. 10,000-22,000 RPM, Includes Two. The seller is tall-corn and is located in Decorah, Iowa. Portamate variable speed router motor 3 1/4 hp. 10,000-22,000 rpm, includes two in a price for power standpoint, it gets no better than this. Specifically designed for use with router lifts or CNC machines that use a 4-1/4-diameter router motor, the additional location pins make this router motor compatible with standard 3-1/4 HP router motor bases as well.