... Sandvik, Ingersoll-Rand etc. The equipments are widely used in earthwork projects, minerals exploiting, well-digging projects and foundation ... continuous innovation and unique competence in drilling technology. An integrated production system has been formed in the workshops, and the ... 127mmThread Type---R22,R25,R28,R32,R38,T38,T45,T51Face Shape---Plate, Concave, Convex.Bit Shank & Coupling sleeve--- ...