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This type of Bi-center bit mainly used for medium to medium hard compressive and 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.

Steel body PDC bit is made by AISI 4145H heat treatment steel manufacture, it has lower cost compare with Matrix body PDC bit.

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