So, I’ve got a few of these after getting them at a knockdown price. They come with a plastic adaptor to allow the use of the BB52 spanner. I’m looking for a proper socket so that I can use a half inch square drive/torque wrench.

I’ve got Park BB 49.2 socket but its annoyingly about a millimeter too small.

Does anyone know which tool I require?

TIA Dave.

59.2 (49.2 is for dura ace and xtr)

https://www.parktool.com/product/bottom-bracket-tool-bbt-59-2?category=Crank%20%26%20Bottom%20Bracket

Shimano make some socket tools for both new sizes and as with most of there tools quality is top notch

Excellent, thanks for the link & info. I’m away for a look.

Cheers, Dave.