This product includes 6pieces/set of Saw Blade Adapter Bushing Washer with the size refers to Internal diameter x External diameter. Diverse Applications -- The Saw Blade Spaceris suitable for saw blade, marble blade inner hole conversion, angle grinder, cutting machine, and can be used as a saw blade reducing ring, inner hole switching ring, or saw blade inner hole switching reducing ring, providing convenient solutions for your saw blade, electric grinder, and electric saw needs. Construction -- The Saw Blade Spacer is made of sturdy steel, ensuring long-lasting performance and reliability for all your cutting tasks. Smooth and Effortless Cutting -- By reducing friction and wear between the saw blade and the tool, this bushing promotes smoother, more effortless use and extends the lifespan of your saw blades. Efficient Performance -- Designed for optimal cutting efficiency, this bushing reduces the time and effort required to achieve precise cuts, making your work smoother and faster., Weight: 0.110231131 Pounds, Manufacturer: GOHAPY