Hard and uniform tooth point is electron beam welded to a tough durable backing with high flex life for faster cutting and longer blade life. For use with portable band saws. METAL CUTTING: For cutting stock 5/16" to 1/2" thick. Recommended for cutting aluminum, angle iron, bronze, brass, copper, galvanized pipe, mild steel and tougher steels including stainless, chrome, tungsten steel plus other problem material at slow speed.