Faithfull Professional TCT Circular Saw Blade with 7mm Tungsten Carbide Tipped teeth to ensure a long working life and accuracy of cut. Each blade has laser cut expansion slots to improve their performance by reducing heat build up. Specially manufactured for use with mitre saws and radial arm saws. For safety purposes, a zero degree blade must be used to avoid kickback when cutting timber by means of lowering the blade onto the workpiece.