Core Barrel With Bit

Core Barrel, Roller Bit, drilling bit, rotary drilling bit, tricone drill bit, tci bit, PDC bit, hybird PDC bit, drilling bit, 

rotary drilling bit, tri-cone drilling bit, HDD bit, HDD reamer

Rotary drilling rig bit can be also named Core Barrels, they are used to cut an annular ring in rock or concrete or reinforced concrete. 

The center core of the rock or concrete is usually crushed with rock auger. The most important advantage of a core barrel is that it assists 

to concentrate the torque and crowd force on a small ring of cutting teeth.