The Oster 4-Point Shear Cutter Blade features a wide tooth design for easy entry into wool, delivering fast and clean cutting. This shearing blade is made with fine-grain carbon steel that is heat-treated to create a hard surface for greater wear resistance. It is then CryogenX frozen at -300 degrees Fahrenheit for a harder, sharper, and more resilient blade. Each blade is also hand lapped for a smooth cut finish, ensuring professional and precise results for every shearing.