Vacuum brazed technology provides longer life and high working efficiency. Using diamond particle coating, cutting sharpness, hardness higher and greater wear resistance. The base body is made of high manganese steel, which has good seismic and impact resistance, strong and durable. Suitable for edge grinding and milling of marble, granite, quartz, microcrystalline stone, artificial stone, etc. Universal round handle design, suitable for cutting machine, engraving machine and gong machine, easy to install and disassemble. For stone edge profiling, grinding/cutting edges, marble trims , ceramic/stone/paver carving. Wide application for drilling marble, granite, quartz, microcrystalline stone, artificial stone, slate, etc. p> Cannot be used for metal, wood, plastic, tempered glass, etc. Applicable Equipment Suitable for installation on welding machine cutting, an engraving machine and a gong machine. Package Included: 1 x Router Bits. Note Water is required during the cutting process to keep the drill cool, which prolongs the life of the cutter and is strictly prohibited from dry drilling. Sold by grid cool store