Cuts 20% faster on average than comparable professional saws Patent-pending tooth pattern helps keep the cut channel free of sawdust Replaceable 7 inch blade (7800-1) made with the same SK4 high-carbon steel Dual cutting positions; one for regular cuts, and another for difficult to reach branches Locking blade with aluminum handle and release button makes it lightweight and easy to carry Lightly textured elastomer grip helps reduce hand fatigue so you can cut longer