Lithium-Ion Item - Express Delivery option not available due to transportation regulations.The M18 FUEL 6-1/2 in. Circular Saw Kit features 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 18V cordless circular saws and allows you to perform jobs that previously required a corded tool. The M18 REDLITHIUM XC 5.0 Extended Capacity Battery Pack delivers up to 2X more runtime and provides more work per charge and more work over the life of the pack than competitive batteries. The saw's REDLINK PLUS Intelligence ensures optimized performance and protection from overloading, overheating and over-discharging.