18-Volt ONE+ Cordless Brushless 7-1/4 in. Circular Saw with 4.0 Ah Lithium-Ion BatteryRYOBI introduces the 18 Volt ONE+ Cordless Brushless 7 1 4 in. Circular Saw with 4. 0 Ah Lithium Ion Battery. he brushless motor provides longer runtime, more power and a longer motor life. The 7 1 4 in. blade provides a 26% increased cut capacity and blade variety. 0 56 bevel cut allows the user the ability to cut the most common and complex angles. The included battery delivers fade free power which allow you to work stronger and longer when paired