Why Deruilong: Deruilong is a professional manufacturer and supplier of diamond coated tools, we focus on providing high quality and practical products for professionals, our tools include diamond saw blades, grinding wheels, diamond drill bits, polishing pads ...... This diamond saw blade is very suitable for our self-developed electric glass cutting machine, and of course for most handheld angle grinder saws, mainly used for processing glass granite marble concrete ceramic porcelain block stone steel etc. Instructions Please make sure the saw blade is not damaged before use. If there is any damage, it is strictly prohibited to use. When assembling, the motor shaft and the center of the saw blade are matched and the error must be less than 0.1mm. When cutting, please do not press side and curve cutting. The feed should be smooth and avoid the impact of the saw blade on the work piece to avoid danger. When cutting dry, do not cut continuously for a long time to avoid affecting the service life of the saw blade and cutting effect; when cutting wet film, use water for cooling; Experts recommend that after the saw blade is installed, it should idle for a few minutes to confirm that there is no shaking or jumping, and then try to cut material like refractory brick to verify, and then it can work best normally.