Slotted Wrench for HPLC Columns

Hi guys! I'm need help. Waters Acquity came to us, and the installer showed us this wrench. But he doesn't know his part number. Can anyone told me part number of this wrench? It is needed for tightening UPLC columns. I don't know the sizes. The installer said he (wrench) was Agilent. Sorry for my english.

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