Bosch Gen 5 Lockring Tool?

[Oxon]

Can anyone point me in the direction of the correct locking tool for the Bosch CX Gen 5 motor?
I've had a Google and there seems to be a couple so I don't want to be ordering the wrong one!

 

[pdqmach26]

Can anyone point me in the direction of the correct locking tool for the Bosch CX Gen 5 motor?
I've had a Google and there seems to be a couple so I don't want to be ordering the wrong one!

Park tool bbt-18

 

[Beaker2135]

I prefer this to the Park Tool one
Bosch Cyclus Lockring Tool - 2123266
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