Use the ABN Metal Cutting Hole Saw Set to make fast and precise cuts into various metals. Cut through stainless steel, sheet metal, cast iron, mild steel, aluminum, and FRP smaller than 5mm. The 6-piece carbide tipped hole saw kit includes 3-hole cutters in sizes 7/8in, 1-1/8in, and 1-3/8in diameters, 2 drill bits measuring 0.8 inches (2cm), and 1 hex key measuring 2.3 inches (5.8cm). Industrial grade precision ground teeth provide accurate hole cuts without penetrating past sheet metal. Store the carbide cutter set in the included toolbox. Padded with pluck foam, your steel hole cutter kit pieces will stay protected. Lightweight 1.3lb (20.8oz) storage case is easy to bring from workbench to job site. Complete jobs with accuracy and speed with the carbide tip hole saw set. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.