Electric hook sharpener??

I don't use electric sharpeners for anything.  They do more damage than good due to lack of control and excessive heat.  Sharpening is all about consistency and precision, things handheld power tools aren't known for.  And those dedicated hook sharpeners they sell at bait shops are worthless as well.  They're usually 200-600 grit.  They're only good for regrinding a tip that's broken off, in which case, you might as well replace the hook.  You need something around 800-1600 grit to make a tip sharp enough to pass the thumbnail test.  

The reason factories chemically sharpen hooks and scalpels is because they're mass producing them and cost and speed are important considerations.  It's not necessarily superior in it's ability to produce a fine edge or point.  It's just superior in it's ability to do many fine edges or points on a large scale, without having to employ thousands of experts to do it all by hand.