"Powerful router is quiet 81dB and smooth, so your hands wont go numb using it. Features variable speed control up to 24,000 RPM. Sub-base accepts industry standard template guides. Soft start offers smooth start-ups. U.S.A. HP 2 1/4, Speed RPM 8,000-24,000, Wrench Included Yes, Collet Diameter in. 1/4, 1/2, Variable Speed Yes, Base Type D-handle, Amps 11. Electronic speed control maintains speed under load Soft start Rugged aluminum motor housing with small 3 1/4in. diameter Sub-base accepts standard template guides Durable, stable flat top for easy bit changes Industrial cam lock for fast, easy depth adjustment Front knob can be placed in two locations for left or right handed operators All ball bearing construction Large calibrated depth control ring for easy depth adjustment"