There are still plenty of bikes out on the road using “old-school” cup and cone adjustable bottom brackets. Here we’ve got a wrench for the adjustable cup to get that bearing pre-load just right.
The wrench is 2.5mm thick and 204mm long. One end features a pin spanner with a distance of 27.3mm between pins. The other end has a wrench on it that fits the 16.5mm x 31mm bosses found on some adjustable cups.