ALUMI-CUT (non-ferrous) 12x80 - AC-30580DN. 12in. dia. X 80 teeth. 1 arbor, TCG grind, .110in. kerf, -5 rake. Great for non-ferrous or plastics on miter or radial arm saws.* ALUMI-CUT SERIES from TENRYU is your best value for your non-ferrous metal cutting needs. Thin kerf. Very economical. Each blade features: fully-hardened, expertly-tensioned tool steel bodies for true and accurate cuts. Appropriate triple-chip grind pattern for non-ferrous metals. Quality carbide ground to precision. The alumi-cut series offers true quality and affordability. These blades are available in a wide variety of sizes to fit most popular job site and shop saws. Excellent results in aluminum, copper, brass, bronze and other non-ferrous metals. Even works well in many plastics. Also good for woodworking and plastic cutting when needed. Resharpenable for long life, the alumi-cut blades will help you improve your bottom line! These blades are also an excellent choice for cutting laminated flooring (i.e.: pergo, etc.) With slide-miters or table saws.