IVY Classic's 4-1/2" Premium Sandwich Tuck Pointing Diamond Blade is ideal for tuck pointing and cleaning mortar joints, and perfect for restoration projects. The sandwich double blade with a segmented rim removes mortar faster than traditional tuck pointing single blade design. The premium diamond blade construction ensures long life and fast cutting action. The blade's high concentration of top quality diamonds ensures accurate cutting edges. Its state-of-the-art design utilizes the latest sintering technology and may be used in dry and wet cutting applications. Specifications: Diameter: 4-1/2", Arbor: 7/8 - 5/8", Cutting Width: 1/4", Overall Rim Height: 3/8", Maximum Speed: 13,300 RPM. IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools.