Our culture of continuousimprovement—based on our R&D commitment to enhancing yourdrilling projects—achieves higher ROP with lowercost-per-foot.

It is with these materials, manufacturing and designcapabilities, and pride in workmanship that we are able to produceone of the finest lines of rotary drilling bits available in thesizes and types that we produce.

range in sizes from 3 7/8” through 26” in both tungstencarbide insert type bits and sealed bearing bits. Most models areavailable in designs for either regular or jet circulation withreplaceable nozzles. Most Throop open bearing models are alsoavailable for use with air or fluid circulation, and many sizes areavailable in reverse circulation.