length: 305 mm Teeth Per Inch (tpi):: 32 mm features: Pair of fine cut replacement blades The virtually unbreakable and shatterproof bi-metal blade with precision ground teeth for all kinds of metal sawing. With a blade back of strong, flexible spring steel and a tooth line in high-alloyed, super high speed steel, this blade is guaranteed to keep its sharpness for a long time The blade combines extreme cutting performance and wear resistance with a high degree of flexibility and is vastly superior to all-hard high speed blades or conventional, flexible blades