DoubleHard’s original blade material is manufactured from "high-alloy" steel and is designed for portable and industrial sawmills. With induction hardened teeth, DoubleHard blades deliver twice the toughness and twice the sharp life compared to standard carbon blades. Wood-Mizer DoubleHard thin-kerf bandsaw sawmill blade - 158" x 0.045" x 1-1/4" - 10° - 7/8" TS DoubleHard is a durable all-purpose blade for sawing softwoods, hardwoods, knotty woods, and frozen woods. Recommended for Wood-Mizer LT15 Portable Sawmill.