Drill Bit For Rock

Drill rods are important tool in drilling, the function is conect drill bit and drill rig. The purpose of the drill pipe is to transport the drilling mud to the drill bit, and together with the drill bit to raise, lower or rotate the bottom hole device, the drill pipe must be able to withstand huge internal and external pressure, twisting, bending and vibration. we can supply geological wireline drill rods with AQ BQ NQ NQ3 HQ HQ3 PQ PQ3 1.5 meters and 3 meters, taper drill rods H22-108mm and H25-108mm from 300mm to 3000mm and customized length with 7 taper degree 11 taper degree or 12 taper degree, tail drill rod, drilling rig drill rod, extension drill rod, extension rod with R32 T38 T45 T51 thread, female and male threaded drill rod with R32 T38 T45 T51 thread