... best quality alloy steel bar and tungsten carbides, MAXDRILLThread button bits made with high quality of best quality alloy ... , R32, R35, R38, T38, T45, T51, ST58, T60 Button bit face design: Flat face, drop centre, Normal and Retrac ... 102mm, T51-89mm, T51-102mm, T51-127 etc. (3)Package: in wooden case or in carton or as client ... waiting for you upon your demand. MAXDRILL mining and Tunnelling rock tools