powersmart mini circular saw, 4 amp 4-1/2 inch compact circular saw, 3500rpm, electric circular saws with laser cutting guide, ideal for wood, tile and plastic cuts powersmart the powersmart ps4005 circle saw control-grip 4-1/2” mini circular saw packs a powerful punch with its 4 amp motor and a triple reduction gearbox, providing all the power you need to take on the toughest jobs. it easily cuts 2x material in a single pass, but it weighs about 50% less than conventional 7-1/4” saws, and the ergonomically designed handle makes it the quickest, easiest, and handiest tool in your toolbox.