Recently took delivery of the Wolf 800 Generator, at just under a 100
notes

no offence, but you were robbed... I bought one (a rebranded version)
for £43+vat at Makro

The next two bits is where I am getting confused. Is there some
difference
between a power tool and an electic motor,

no idea, but I "tried" to use an angle grinder (500w motor) hooked up to
the genie and it failed miserably, however, a 1300watt pressure washer
worked fine... weird

LJ