Head stack "comb"

Do you think something like this would work?

http://i17.ebayimg.com/04/i/000/85/98/8aa6_1.JPG

Is this identified for this purpose?

Sorry, it is blade from hair clippers :lol:

It seems like it should work if the spacing is correct.

I think there's a very small chance of being the correct spacing.

It's possible to buy them in lots with many different spacing. Is the spacing similar for every head stack?

It's different for 2.5" and 3.5" drives.

Fine, but is it the same for drives within the same 2.5" or 3.5" form factor? I don't really care about the 2.5".

Yes. I think all are the same.

Does anyone know what mm of space between the arms (at the flexible part close to the heads) is necessary to prevent the heads from sticking when removed?