The Go-To Cordless Circular Saw. Make precise, fast and efficient cuts through wood with the SKIL 20V 6-1/2 Inch Cordless Circular Saw. From building new shelves to building a new deck, this is the ultimate power tool you want on your side. This cordless 20V circular saw comes with a 2.0Ah PWR CORE 20™ Lithium Battery and 20V Charger to keep it powered up, so you can get more done.