China Cheap Prise Original Carbide Tipped Masonry Drill Bits for Concrete, Find details about China Drill Bits, End Mill from Cheap Prise Original Carbide Tipped Masonry Drill Bits for Concrete
Drill bits are cutting tools used to create cylindrical holes, almost always of circular cross-section. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes.