Precision design with a length adjuster for woodworking. The guide slide features deep precision slots for safe and accurate saw blade guidance, sliding vertically on two strong pairs of round rods of the turning rail. The pivot point of the pivot rail is mounted in a robust steel pivot pin with an adjustable segment arc guide. The segmented arch allows for precise centering for momentary engagement at 90°, 45°, 36°, 30°, and 22.5° angle cuts, and can be set to any other angle according to a template. The clamping saw comes with a ready-to-use saw blade for wood and can be suspended from an eyelet on the front guide slide when not in use, with automatic release during cutting. Quick and easy saw blade changes can be made by loosening the wing nut underneath the handle.