1)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 type MPCH, MSPC, MDSP master bushing and MSP master bushing. P/N 1816 used for 23-49 1/2 inch master bushing; P/N 1815 used for 17 1/2-21 inch master bushing.
2)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 master bushings.
3)Bit Breakers are mostly used for screwing standard 3-cone bit.