This 10 inch diameter saw blade is constructed of carbon tool steel, and is designed for cutting window and screen frame material made of aluminum. Cutting aluminum frame stock with this steel blade provides best results when used with saw wax (see Prime-Line part P 7931). A waxed blade will produce clean, burr-less cuts, ideal for time saving repairs and new construction. Use of saw wax (not included with blade) will help to extend the life of the blade. This 1/16 inch thick, semi-high speed saw blade is equipped with 200 teeth and mounts on 5/8 inch arbors of bench top chop (miter) saws and radial arm saws.