Bahco 12-Inch 3906-300-3P Sand Flex Bi Metal Hand Hacksaw Blade, 3-Pack Precision ground teeth for all kinds of metal sawing Blade back made of strong, flexible spring steel with a tooth line of high-alloyed super high speed steel Bi-metal This Product is manufactured in Sweden 12-Inch blade Pack of 3 blades 18, 24, and 32 teeth per-Inch Blade back made of strong, flexible spring steel with a tooth line of high alloyed super high speed steel Bi metal construction guarantees the blade to keep its sharpness for a long time