Discover the perfect solution for your grout removal, tile cutting, and home renovation needs. These oscillating multi-tool blades are crafted with industrial-grade diamond grit, offering ultra-durable cutting performance that lasts 6 times longer than ordinary blades. The set includes 3 types of blades: 2 flat diamond saw blades for brick cutting and narrow gap cleaning, 1 semicircular saw blade for large flat surface sanding, and 2 crescent diamond blades for fast floor concrete grinding. They are sized at 5.9 in. L x 4.73 in. W, with a package volume of 6.1 x 4.8 x 0.7 in. and a package weight of 0.31 lbs. To use, simply operate the tool at a lower speed and oscillate the blade from side to side, engaging more teeth with the material for enhanced efficiency and longer blade life. Compatible with over 98% of oscillating tools on the market, these blades are your all-in-1 solution for bathroom remodels, DIY projects, and professional jobs.