Machine keys BU-73-89 and KBT (UMC)

Machine wrench BU 73-89 Designed for screwing and unscrewing tubing, drill pipes and locks of two sizes: diameter 73 and diameter 89 mm during major well workovers, as well as drilling tools of the corresponding dimensions. Machine wrench KBT (UMK) Designed for fastening and loosening threaded connections of drill, tubing and casing pipes during tripping operations during drilling or major well workovers.