For pricechoose optionsSelect Option 18tpi Pack 2 24tpi Pack 100 300mm (12in) X 24tpi, Pack of 2 300mm (12in) x 18tpi, Pack of 100 300mm (12in) x 32 TPI (Pack 100) 300mm (12in) x 32tpi, Pack of 2 Quantity Add to Basket IRWIN® Bi-Metal Hacksaw Blades are safer than HSS blades. They are flexible, shatter resistant and are suitable for use on a variety of metals.