For a dependable, long-life blade, look no further than Andis UltraEdge blades. UltraEdge dog clipper blades are made from high-carbon steel and processed through a unique carbonizing heat treatment that actually adds carbon to the metal. Blades hold a razor sharp edge that will endure prolonged use and more sharpening treatments. Ideal for trimming between pads, around toes, narrow lines on poodle patterns. Each UltraEdge clipper blade is sharpened to exact quality standards. Hand-tested before it is shipped, blades have a Rockwell hardness rating of 65. Compatible with Andis, Conair, Oster and Wahl detachable-style clippers.