Milwaukee 6310-22 18-Volt Ni-Cad 6-1/2-Inch Cordless Circular Saw Cuts more 2 x 4's per battery charge than any other cordless circular saw 6-1/2" blade easily cuts 2 x material at 45 degrees 2.4 amp/hr battery provides 20% more run time than other Ni-CAD batteries 3200 rpm with electric brake, great balance Limited warranty, 30-day no-risk trial