The Bosch PR20EVS Colt electronic variable-speed palm router combines power, precision and versatility in a small-sized tool. It has a 1.0 HP, 5.6 Amp motor that spins at a variable speed of 16,000 to 35,000 RPM. The variable speed dial is conveniently mounted on top of the tool body. The router features Constant Response circuitry, which maintains a consistent speed by detecting heavy loads and increasing power to maintain the selected RPM. It features soft-start circuitry, which reduces startup torque. Additionally, depth adjustment is simple; just align and lower the motor and then lock the router in position with the clamping level. Micro-fine adjustments are equally effortless, thanks to the wheel on the back of the router's base. It accepts standard 1/4 In. bits for flexibility, with an impressive max cutter diameter of 1-5/16 In. The motor housing has a palm-shaped, rubber over-molded grip that allows for comfortable operation. And the included rugged aluminum fixed base is durable, solid and precise. Angled cord exit helps keep cord out of the way. Includes fixed base, 1/4 In. self-releasing collet chuck, shaft wrench, collect wrench.