（1）Vacuum Brazing Technology provides the strongest bond between diamond grit and the steel tube body of core bit, work more sturdy than ordinary drills and longer working life.
（2）The plating process makes for a harder, longer lasting electroplated bond so these drills will hold up well to consistent use,but once the diamond layer is gone they will need to be replaced.
（3）Take the core drill bit out of the hole while you are drilling frequently.
（4）Drilling+Milling+Cutting Set,meet different working needs.
（7）The core bits can be used in either drill press or hand held drill, including cordless drills.
（8）Lightning teeth design; conducive to debris and heat dissipation, better performance;
Application
1.For drilling granite,marble,masonry,tile,ceramic,porcelain,etc...
2.Fitted with a hexagonal shank adapter for angle grinders and hand drills.
