The GreatNeck 24 TPI standard hacksaw blade set (10 in) includes two hacksaw blades that will fit most standard 10 inch and adjustable frame hacksaws. The flexible steel blades feature hardened teeth to stay sharper longer. These standard hacksaw blades are recommended for cutting drill rod, medium sheet metal, tubing, conduit, BX cable, and cross sections less than 1/4 in thick. This blade set is made in the USA.