TCI HDD Drill Bits

5 1/2 Inches HDD Drill Bits IADC637G Popular size in drilling pilot hole for HDD application, the thread connection is customized for fitting with mud motor. Product Specification Cone Size 5 1/2" Bearing Type Elastomer Sealed Bearing Tooth Type TCI Circulation Type Mud Fluid Thread Connection 2 7/8 Reg Pin Gauge Protection Available Shirttail Protection Available Operating Parameters RPM(r/min) 80~40 WOB(KN) 69~167 Application Hard formations with high compressive strength