Welcome to Multitool.org buddy! Good to see you over here. Nice looking tractors you have there- what are they used for?
The Core, as with any multi from a reputable manufacturer should hold up to just about any application you may run into. Many are more than capable of dealing with what would be considered "abuse" by the average manufacturer, but they hold up pretty well.
Any of the "heavy duty" tools like the Core, Surge, SwissTool etc should stand up to just about anything, unless you purposely try to break them or use them for seriously hardcore things that need specialized tools. There is a reason why monkey wrenches have been around for so long! However for regular equipment and mechanical maintenance, the Core (and virtually any other quality tool) should manage just fine.
Def