The M18 FUEL 6-1/2 in. Circular Saw is the fastest saw in its class, offering up to 30% faster cutting, 2x more runtime and 3x longer tool life than competitive saws. The POWERSTATE Brushless Motor outpowers all other 18-Volt cordless circular saws and allows you to perform jobs that previously required a corded tool. The saw's REDLINK PLUS Intelligence ensures optimized performance and protection from overloading, overheating and over-discharging.