UltraEdge Cat Blade, Size No.7FC Carburized steel blades boast the Andis Electro-Glide Technology coating, and are compatible with Andis, Oster, and Wahl detachable clippers The EGT blade coating cuts smoother and faster, and resists rust Three sizes: #7FC Finish Blade, 1/8"; #10, 1/16"; and #30, 1/50" Features a Rockwell Hardness Rating of 65 Made in the USA