Help with small hole drilling

[Mr. Python]

Hi Guys 'n Gals,
I need to drill a 0.5mm hole in a s/s M8 bolt (see CAD workup below for detail)
Does anyone know where I can get a 0.5 bits, tried builders whorehouse but .08 was as close as I got and would have had to buy a whole dremel set to get it.
Are there other ways to make such a small hole?

I think i will need quite a few bits - Gonna break 'em.
I need to make 4 of these suckers

 

[T Rex]

 

[Kneeslider]

 

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[GRIM]

 

[Flouw]

 

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[Mr. Python]

 

[Mr. Python]

 

[Mr. Python]

 

[Mr. Python]

 

[GRIM]

 

[ClimbingTurtle]

 

[Mr. Python]

 

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[Mr. Python]

 

[gunsports]

 

[Mr Zog]

 

[gunsports]

 

[Mr Zog]