This is a fully capable Mitring Saw for professionals and hobbyists. Setup and operation are dead simple; you set the angle that you want to cut, clamp your workpiece to the fence, and make precision cuts. The adjustment range is a full 180 degrees. The 22" long blade is held in a rigid, adjustable guide that keeps you locked into your angle as you cut. It is extraordinarily accurate. When adjusted to 45 degrees you can cut a 3 3/4" width board, adjust to 90 degrees and you can cut a 6" width board. This tool is perfect for making picture frames, cutting trim, or simply making accurate cuts from 1 to 90 degrees. Comes with clear instructions and a 22" – 24 tpi blade. Replacement blades are available.