Makita SP6000K1 6-1/2-Inch Plunge Circular Saw with Guide Rail Precision Accurate Cutting Delivers a Splinter Free Mirror Finish. Electronic Speed Control Maintains Constant Speed Under Load for Smooth Cutting Variable Speed Dial Control (2,000 - 5,200 RPM) for Optimum Performance in a Variety of Materials Built-in Current Limiter Helps Prevent Motor Burnout. Powerful 12 AMP Motor for Continuous Operation.