Milwaukee’s new cordless M18 10-ton knockout kit uses hydraulics to punch 1/2-inch to 4-inch holes in up to 12-gauge stainless steel. Because the punch and die (complete with laser-engraved crosshairs) can be aligned without the tool attached, set-up is easy. The tool then uses a quick-connect system to grab on and punch the hole. The Milwaukee punches and dies are compatible with both mild and stainless steel. The tool is available in a basic set (no punches and dies) or in sets with the accessories. A full selection of punches and dies is available separately. Price: $1,300 to $2,000, depending on kit / COO: China /