The Makita® 4-1/2 in turbo rim Diamond Blade is ideal for general purpose cutting applications including block, brick and cured concrete. The turbo rim design is engineered for constant contact with the material to deliver a smoother finish than segmented blades. Diamond Blades are part of Makita® growing line-up of solutions for concrete applications. Makita® Diamond Blade, General Purpose Turbo Rim, 4-1/2 in Diameter Blade, 5/8 in, 7/8 in Arbor/Shank, Wet/Dry Cutting Condition, 13 mm Segment Height, Optimum™ Bond, 13800 RPM Maximum, Applicable Materials: Cured Concrete Block, Brick and Masonry