Diamond core hole saws are made of new technology and new materials. They are sharp, open quickly, and remove chips easily. In addition, vacuum brazing technology provides longer service life, fast drilling and smooth punching, while laser welding technology prevents segments from falling apart during dry operations. This also improves work efficiency and accuracy. Dry diamond core drills are equipped with angled grooves extending to the rear end to expel dust. They are vacuum brazed to provide a clean cut and steel core protection. The spiral design of dry diamond core drills draws dust into the barrel. The diamond core hole saw adopts laser welding technology, which has high strength and can prevent drill bit loss.Our products are designed to make on-site work easy, fast and smooth using high-quality materials and are tested for optimal performance. The diamond core hole saw set must be lubricated with water to extend its service life; when drilling hard materials, it is important to keep the tool cool to prevent material damage and premature tool wear. The service life of the cutter head can be greatly extended by wet drilling.