Quality Control of Great Rock Reamer II

This is a 7 blade Matrix body PDC bit , with Stinger cutters back row, used for very abrasive formation.

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

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

Core barrel with roller bit is used in very strong rock formations(compressive strength > 100Mpa)