Well Drilling Master Bushing Kit Carbon Steel Material API Spec 7K Standard

Master Bushing Accessories according to API Spec 7K for well drilling

Bit breaker adapter plates are installed inside the master bushing drive pin holes and provide a 13-9/16 inch square hole to connect bit breakers.they are used for MPCH,MSPC,MDSP and MSP.P/N:1816 used for 23-49.5 inch master bushing;P/N 1815 used for 17.5-21 inch master bushing.

Lifting slings for removing and installing bushings and insert bowls.

With 2 hooks P/N 1021 for removing and installing insert bowls.

With 4 hooks P/N 6699 for removing and installing bushings.

Bit breakers are mostly used for screwing standard 3-cone bit.