Product Description SAWZALL BL 9" DIAMOND GRIT 1PK. The product is easy to use. The product is durable. The product is manufactured in United States. From the Manufacturer Diamond Grit The Torch Sawzall blades are ideal for cutting cast iron, hard tile, masonry and other abrasive and hard materials. Diamond Grit delivers up to 30x longer life than standard carbide grit blades. The result is a significantly lower cost per cut. The precisely controlled size and placement of the diamond grit allow these blades to cut up to 2x faster than standard carbide grit blades. A thicker, more rigid blade body resists fracturing and bending for maximum durability. The 1" tall blade body reduces blade twisting for straighter, more accurate cuts.