Evolution Mild Steel Cutting Circular Saw Blade delivers maximum performance by using the highest grade carbide, hardened blade bodies and ultra high-grade brazing techniques to increase production and performance. Produces clean, accurate cuts that are cool enough to handle immediately and ready to weld straight off the saw. Designed to deliver maximum cutting performance and precision to metalworkers and fabricators. This Evolution Mild Steel Cutting Circular Saw Blade has the following specification: Diameter: 185mmBore: 20mmTeeth: 40Kerf: 2mmMax. Speed: 5,800/rpm