Oster® Arizona Thin® 3" Wide 13-Tooth Comb Item #: 78554-016-003 Product Description: The best in the business with innovative heat-reducing technology and legendary, sharp-cutting performance. All of Oster® blades are put through a 12 step process guaranteeing quality and craftsmanship. We start with a fine-grain carbon steel that is heat treated to create a hard surface for greater wear resistance, leveraging a Rockwell Hardness Rating of 62. Our patented Cryogen-X™ process takes the blades down to a -300 degrees for a deep freeze, producing a harder, sharper blade which extends the product life. Each blade is then hand lapped for a smooth cut finish. *For use on all Hand Pieces &; 3" Shearing Head #1 *Ideal for close, smooth show trimming *Model P1080