Roughneck ROU34371 Hacksaw Blades 300mm x 24 TPI (Pack of 2) These hacksaw blades are made of M2 steel and are suitable for the Roughneck Heavy-Duty Hacksaw (ROU34330). They also fit virtually all makes of standard 300mm (12in) hacksaw. ROU34371 Specification: Length: 300mm (12in) TPI: 24 Pack quantity: 2 What is included: 2x ROU34371 Hacksaw Blades 300mm x 24 TPI