I do hydraulics work, and 2.5 and 2.875 are reasonably common English sizes. 60mm is the largest metric I run into. (these are not on my car, but are on mobile vehicles)
I bought it used from the city not running at auction years ago and sold it in 05.
It was a small U900 with dump bed. I used it for off road and hauling all sorts of stuff. My BIL still has it. Yes street legal.
The 50mm pulley holder, for helping to remove Honda crankshaft bolts if you attempt the feat without a serious impact wrench. The torque angles you put on the thing make it move in unhelpful directions. An IR W7150 works better.