ROFLOL
My point being phil, its a hell of a lot easier to machine a circular socket in a fooking lathe than a bloody Nut, nowt to do with safety, im sure yours will be safe

And hey, what a bonus, ya can even use your socket on MORE engines then.... you have a new SPECIAL TOOL.

ROFLMFAO

Admit it,
Youve read this and wondered what the fook you machined the nuts down for havent you?

Sorry