1、High Performance: The hole saw is designed with M14 female thread, the handle is anti slip, with large torsion and high bearing capacity 2、Thickened Emery Coating: The hole drill bit is coated by thickened emery uniformly, which improves the life, can be used stably 3、Robust and Durable Material: The cutting blade of the diamond hole saw is made of high quality diamond for more efficient performance than conventional carbide or bimetal hole saws 4、Aluminum Box Storage: The hole saw is preserved in an aluminum box, which is rust proof and anti corrosion, the box has a smoothly and high end appearance 5、Application: The hole saws drill holes neatly and smoothly, without broken edges, no need to add water, sharpness and wear resistant, which is suitable for marble, glass, ceramic tiles, etc.