I really did not mean for my comets to infer that this was strictly for the auto industry, it does fit, but just about anything. Ever get a chance to see inside of an ATM? The people that designed them never, I mean never planed for the fact the machine to have any maintenace preformed, without taking totally unnecessary parts off, and laying upside down. Thats just one example, there are many many more. Over engeering is real watch for it. It's everywhere.