27*0.9*3/4 M51 HSS Bimetal Band Saw Blades/Bandsaw Blade for Cutting Metal. Advanced Heat Treatment Technology: World's first tooth tip and back material after heat treatment welding technology. High Hardness and Wear Resistance: M51 tooth tip quenched by vacuum furnace with cryogenic technology at minus 196 degrees. Versatile Cutting Application: Specially designed tooth shape suitable for bearing steel, carbon steel, and alloy steel. Fatigue Resistant Back Material: Refined high chromium spring steel increases lateral bearing capacity and fatigue resistance. Strict Quality Control: 100% inspection before delivery with monitoring of every production process. Long Service Life: Ensures high hardness between teeth for superior wear resistance and long lifetime. Fast Delivery for Stock Items: Delivery time is only 3-7 days if parts are in stock. Flexible Minimum Order: Accepts even one piece for test process with no strict minimum order requirement.