The 6310-20 Milwaukee 18 Volt Cordless Circular Saw operates on a 2.4 amp hour nickel-cadmium battery and can cut up to 145 2 x 4's or 106 feet of 5/8 inch OSB material on a single charge. Milwaukee uses only no memory effect batteries, always providing the user with full battery capacity. This 6-1/2 inch saw includes an electric brake which stops the blade in seconds. The Cordless Circular Saw can bevel up to 50 degrees for cutting extreme angles. The saw features all-metal upper and lower guards and a rigid aluminum shoe for rigorous jobsite use. A soft grip handle results in a more comfortable gripping surface. Batteries are interchangeable with other Milwaukee 18 volt tools adding versatility.