Irwin IRW10504530 Junior Saw Blades 150mm (6in) 14 TPI Wood (Pack 10) Irwin Junior Saw Blades provide improved cutting performance. Their tooth geometry delivers higher resistance against tooth strippage and increases longevity and durability. Leveraging the advantages of WeldTec technology, Irwin hacksaw blades allow for faster, smoother and less tiring cutting. Can be used on wood. Specification: Length: 150mm (6in) TPI: 14