DEWALT DCS390L 18-Volt Cordless XRP Lithium-Ion Circular Saw Kit 3,700 RPM for fast rip cuts and cross cuts 6-1/2-inch carbide tipped blade for 2x cutting capacity at 90 degree and 45 degree High strength magnesium shoe and upper guard provides increased durability 0-50 degree bevel capacity provides additional capacity for a multitude of applications XRP Li-Ion extended run-time battery provides long run-time &amp; battery life;