Manufactured from tough, non-chip high-alloy steel material with induction hardened teeth. DoubleHard sawmill blades are recommended for all-purpose sawing of softwoods, hardwoods, knotty woods, and frozen woods. Compared to standard carbon steel sawmill blades, DoubleHard features up to double the blade life for increased durability. Wood-Mizer DoubleHard sawmill bandsaw blades are compatible with a variety of portable sawmills and band resaws. LX25, LX50START, LX50SUPER, LX55. Hunter, Patriot, Sawyer, HFE-21, Oscar 428. LM29/30, LM2000, LL24, ML26, MN26/27, MK I/II/III/IV. M280, M285 TMG-PSM26, TMG-PSM27 portable sawmills. LT15START, LT15, LT20, LT25/27, LT28, LT30, LT35, LT40, LT50, HR120, HR130, HR300, HR500. Model A, Model AB, Model B, Model C, Model PAQ, Model II PAQ. HD36, HD36V2, HD38, LM34, MX34. Farm Boss, H360, HFE-30, HFE-36, Oscar 330 Pro, Oscar 336 Pro. LT40WIDE, LT50WIDE LT15WIDE, LX150. Sawmill Blade Hook Angle. Wood-Mizer DoubleHard sawmill bandsaw blades are available in a variety of hook angles. 10° Sawmill Blades – Most popular and versatile all-purpose hook angle with a 30° back angle for sawing softwoods, medium hardwoods, and hardwoods including birch, beech, red oak, cherry, walnut, soft maple, pine and poplar. 9° Sawmill Blades – Ideal hook angle with a 29° back angle for lower horsepower (24HP or less) sawing in frozen wood, hardwood, and small diameter logs. Wood-Mizer DoubleHard sawmill bandsaw blades are available in a variety of thicknesses. 042″ Sawmill Blades (125″, 132″, 144″ Length) – Provide longer flex life with lower horsepower (24HP or less) sawmills where production or speed is not a primary factor. 045″+ Sawmill Blades (158″, 167″, 171″, 176 Length) – Provide faster feed rates and better cutting performance in difficult sawing conditions such as knotty, frozen, dry or extremely hard material, but require higher horsepower (25HP or more).