This 2-Piece T-Slot Router Bit Set Features 8Mm Shanks And 3 Flutes Ideal For Woodworking Applications. The Cutter Body Is Constructed From High-Hardness Tungsten Steel Enhanced With High-Frequency Welding Technology For Superior Wear Resistance And Extended Service Life. Its Unique Design Ensures Exceptional Sharpness Hardness And Impact Resistance Making It A Top Choice For Quality. Suitable For Wood Mdf Particle Board Plywood And Compact Panel. Not Suitable For Ferrous Metals Like Steel Or Iron.