Not unless I can watch him do the work, so that I can get the tool back at the moment he's finished...
Well, possibly, he could borrow my 44mm socket as I haven't used that one since 1993 or thereabout.
(It was needed to remove the fan on my air-cooled CitroŽn GS. The fan was mounted directly to the crankshaft, and to make it even bigger, the end of the shaft has a slot for a hand-crank. The biggest engine fitted in that model was a 1.2L boxer, and yeah, it was possible to hand-crank it. That model engine was also fitted in a certain 2CV used in a ames Bond movie. gosh, am I full of useless trivia or what?)
The same SEEM test tool is used on a lot of CitroŽn and Peugeots from the period, and probably quite a few others too, as the engine was sold to a lot of other companies.
and of course, a lot of others ust specified the same or similar tool because they also use similar belts.
The SEEM tool costs about £300( I spotted a 'compatible' one online) which would be somewhere around $500?
Googling seems to indicate that 'correct tension' is approx tensioning it so that you can twist the middle of the 'long stretch' 45degrees with your bare fingers.
Pretty vague in other words...