Oster uses cryogenic technology to create the hardest blades ever. Cryogenic processing conditions metal to 300 degrees below zero, so molecules are aligned in a perfect structure. The result is a harder, denser metal that holds a sharper edge through prolonged usage. A5 Cryogen-X™ Blades also withstand more sharpening treatments for unsurpassed longevity. Sharper blades glide through coats with less effort, saving you and your clipper from unnecessary fatigue and wear.
Cryogen-X™ Blades are manufactured from fine-grain, high-carbon steel that is cryogenically treated. With a Rockwell Hardness rating of 62, these durable blades were designed with the busy groomer in mind. Blades stay ultra cool for optimum durability.