BAHCO Sandflex Bi-Metal Hacksaw Blades 300mm Unique construction makes them virtually unbreakable and shatterproof. The back of the blade is made from flexible spring steel.The tooth line is high-alloy super high speed steel.Each blade is precision ground to provide the highest quality teeth.Guaranteed to keep its sharpness longer.Suitable for sawing all kinds of metal.One of the market leading hacksaw blades.Dimensions; 300mm long x 13mm wide x 0.65mm thick.Manufactured by Bahco of Sweden.