Oster CryogenX Professional Pet Clipper Blade, Size 50 (078919-006-005) Clipper blade ideal for extremely close clipper work and veterinary surgical preparation; cuts hair to 1/125 of an inch (0.2mm) Handcrafted from high-carbon steel to provide exceptional precision and durability Cryogenically treated to ensure long-lasting sharpness and wear resistance Optimized with titanium coating for enhanced surface hardness Manufactured in the USA with superior craftsmanship