Excel Mitre Saw Blades commonly made of carbon steel. may come with a coating to make the cut easier. The thickness of the Excel Mitre Saw blade will determine the width of the cut. Finer, more precise cutting applications will need a thinner diameter blade. This allows the disk to expand as it heats up while cutting and, therefore, prevents warping. Teeth ranges vary from 24 to 100 teeth. A saw cut is initiated from the edge of the metal or a carefully pre-drilled hole. Although as you work your saw blade requirements will alter.For smooth cross-cuts in plywood, softwood, and all hardwoods.