Great Rock Reamer Hole Opener Quality Control

GREAT DRILL customized Rock reamers size from 10'' to 72''.

Hybrid drill bit conventional PDC and roller-cone bits. It is saving cost, Improves Drilling Efficiency.

Tricone bit is an important tool for oil drilling.

PDC Hole Openers, are used to enlarge the pilot hole in Horizontal Directional Drilling(HDD).Widely used in construction, bridge, highway and railway construction.