Oster CryogenX Professional Animal Clipper Blade, Size 8-1/2 (078919-146-005) Animal clipper blade ideal for grooming heavy, matted coats; cuts hair to 7/64 of an inch (2.8mm) Handcrafted from high-carbon steel to provide exceptional precision and durability Cryogenically treated to ensure long-lasting sharpness and wear resistance Manufactured in the USA with superior craftsmanship Available in a variety of sizes to suit any coat type and fur length