Heavy-duty, durable, commercial grade Hard Edge Hard Back band saw blades are for industrial woodworking, DIY, and professional craftsmen. They are the premium band saw blades for easy to work metal at low speeds with coolant. Hard Back Blades permit greater tension, improved blade rigidity and straighter, more accurate cuts. Cuts hard/soft wood, plastic, mild steel and non-ferrous metal (for machines with speed reduction). For all vertical/stationary 2-wheel band saws.