Milwaukee says that with optimized 5-tpi tooth geometry, its new The Ax Sawzall blade will cut twice as fast as other carbide blades and allow for faster plunge cuts, without worry about bouncing on the work surface. The teeth resist fracturing from hitting nails, and according to Milwaukee, The Ax blades will last 30 times longer than bi-metal blades. They come in 6-, 9-, and 12-inch lengths with costs of $8, $11, and $14. milwaukeetool.com