Features: * Bi-metal construction * Use to make plunge cuts up to 3/4-inch deep * Make precision cuts to wood, plastic, fiberglass, nails, non-ferrous metals, thin sheet metal, and hardened fillers * Hardened teeth will cut non-ferrous metals * Universal fit system adapts to other brands * For use on Rockwell Sonicrafter and ShopSeries Sonictool models RK5139K, RK5140K, SS5120 What"s In The Box: * Rockwell RW8931 Sonicrafter 3/8-Inch Universal End Cut Blade