>>/29203/
> The export of machine tools aided the Red Army’s expansion

Different discussions in Russian military history circles ended with opinion that Germany's pre-war export was pretty inefficient for Soviet economy. Amount of machines was not so large to do any proper effect, and other things (including cruiser Lützow/Petropavlovsk) didn't do anything good in war times.

That agreement was much more beneficial to Germany than USSR, although it is ok for pre-war USSR, who did so much wrong political moves anyway.