這款工具組的一端扳手能夠與16個凹槽的底座杯相配合。附帶的曲柄安裝工具為TB-8911。規格如下：
TB-BB15：用於拆卸和安裝Shimano? SM-BB9000、SM-BB93和TOKEN?底座杯。
TB-BB16：用於拆卸和安裝Shimano? SM-BBR60底座杯。
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One end wrench engages 16 notches of bottom bracket cups.
Attached a crank installation tool, TB-8911.
Spec:
TB-BB15: To disassemble and install Shimano? SM-BB9000, SM-BB93 & TOKEN?.
TB-BB16: To disassemble and install Shimano? SM-BBR60.