You are Buying a Brand New And Factory Sealed Makita 4.5 in. Turbo Rim Diamond Blade for General Purpose...........  Makita 4-1/2 in. Turbo Rim Diamond Blade is ideal for general purpose cutting applications including block, brick and cured concrete 13 mm segments are designed for longer life and faster cutting. Up to 4X longer life than competitive blades. For cutting concrete, block, brick, pavers and roof tiles. Optimum bond matrix provides a faster, longer lasting and smoother cutting diamond blade. Carefully tensioned for less vibration and a superior user experience. Strict quality control measures ensure superior performance. Dry or wet cutting for added versatility. For smoother and finer cuts in masonry products. Made with high-quality diamonds. For use with angle grinders. Maximum RPM: 13,300..........................