Electric Hammer Concrete Drill Bit Set

What are the advantages of cylindrical bit?

This kind of drill is a new kind of drill which is cylindrical and punctured on the drill body of hard alloy. The advantages of this kind of drill are: the hole is easy to open the door, not easy to stick the drill, the hole is round, the drilling speed is higher, and the amount of coarse debris increases, the specific power of crushing is low, the dust concentration of the working surface is low, the consumption of cemented carbide is less, the cost of repair is low, but the diameter of the hole should not be less than 40mm. This kind of drill is being used more and more in the field because of its unique advantages.