The M18™ FUEL™ 6-1/2 in circular saw kit features the fastest saw in its class, offering upto 30% faster cutting, 2X more runtime and 3X longer tool life than competitive saws. The POWERSTATE™ brushless motor out powers all other 18 V cordless circular saws and allows you to perform jobs that previously required a corded tool. The M18™ REDLITHIUM™ XC5 extended capacity battery pack delivers upto 2 5X 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. The 18 V Lithium-Ion circular saw's guards and shoe are built of cast magnesium to provide a durable, lightweight base. The saw also features an integrated LED light and a rafter hook for convenient storage on the job.