The DEWALT Series 40 circular saw blade. High precision laser manufacture ensures a flat blade body with engineered expansion slots which prevent blade overheating and warping and large tungsten carbide tips which can be resharpened 10 to 15 times. For extra fine cuts in plywood, veneers, softwood and hardwood. These blades are designed with triple chip grind geometry which gives an excellent surface finish on the workpiece. The blades are tuned to avoid breakout on laminate materials and are suitable for aluminium. Specification Blade Diameter 250 mmBore Size 30 mmKerf thickness 3.2 mmTooth Count 80Grind geometry Triple ChipRake angle -5°