GREAT's High-quality Bits Series I

GREAT customized made Diamond core bits ,which including Matrix body and Steel body.

Popular Size: 1305, 1308,1613,1616,1913

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

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