The MILWAUKEE® 4-1/2" STEELHEAD™ Metal Cutting Diamond Blades are designed to the highest standards, using only quality diamonds. Available in sizes 4-1/2" - 14", these metal cutting diamond blades are uniquely engineered to cut metal and stainless materials, delivering up to 75X the life vs. Milwaukee standard bonded abrasives. The solid steel core maintains diameter and minimizes debris. Capable of 375+ cuts in rebar, 250+ cuts in strut, and 500+ steel studs, this blade maximizes your productivity to do more with one blade. The keyhole gullets offer rapid debris removal while cutting. Cut through steel, stainless, copper, cast iron, and schedule 40 pipe. For dry use only.