Package Includes-----Total 5pcs: 1pc tile saw blade; 1pc carbide wood saw blade; 1pc concrete saw blade; 1pc HSS metal saw blade; 1pc TCT wood saw blade; diameter 3 inch(75mm); bore 3/8 inch(10mm) Application-----This saw blade set is suitable for cutting porcelain ceramic tile marble granite concrete wood gypsum boards rubber tubes copper aluminum metal etc High Performance-----Super Thin blade provides fast and smooth cutting, much longer working life, durable and sturdy Multi-functional-----Includes five types of saw blades suitable for cutting different materials, which can meet different needs Recommended Machine-----Mini Angle Grinder with 10mm Arbor. Recommended speed 11000RPM, maximum speed 19000RPM