**Factory Serviced**. Features: Strong, lightweight magnesium motor and gear housings allow the HD77M to be 2 pounds lighter than HD77. Precision machined worm gears. Aircraft strength aluminum foot. High torque motor design. All ball bearing construction. Oil chambers bellows prevent leaks. Dust resistant, 22.0 amp AC/DC switch. Easy to read depth scale. Quick release depth and bevel levers. Front foot scale. 8-foot, 3-wire grounded rubber cord. Specifications: Rating: 120V AC/DC. No load RPM: 4,400. Amps: 13.0. Blade Size: 71/4. Arbor: Diamond. Max Depth of Cut 90 degrees: 2-3/8". Max Depth of Cut 45 degrees: 1-15/16". Tool Weight: 14 lbs.