Shank adaptor is used for transmitting power between drill machine and drill stems. One end is to connect drill machine, another end is to connect drill stems, by this way, the power from drill machine is transmitted to drill bits, finally the rocks are cut . shank adapters, couplings, extension rods, threaded cross bits and threaded button bits belong to threaded drilling products. And our shank adaptors are available for,Atlas Copco: COP 1038HL,COP 1238,COP 1432,,COP 1532, COP 1440, COP 1838 HD, COP 1838 etc.Furukawa: M 120, PD 200, PD 200R, HD 260, HD 300, HD 609 , HD 612 ,HD 712,etcIngersoll- Rand: URD550, VL120, EVL130, VL140, F16, YH 65, YH 80, YH 70 RP, YH 80 RP,etcMontabert: HC 40, HC 80, HC 90, HC 105, HC 120, H 100, HC 150, HC 80R, HC 120R,etcTamrock: HL 300, HL 300S, HLX 3, L400, L500, HL 438, HL 538, HL 500F, HL 600S-45,etc