ANH Han Blaster - What bit to use

[Firespray]

Anyone know what drill bit was used on the Han ANH blaster for the bore in the side. (shown in the pic below) The only flat bottom bits I'm finding are for wood boring like the FORSTNER BIT. Maybe this bit would work on metal but would just dull very quickly. I would love to hear your thoughts or how others have accomplished this bore.


View attachment 26170[/ATTACH]

 

[Sidewinder]

4 flute milling bit would be it.

SAS

 

[Firespray]

4 flute milling bit would be it.

SAS

Wow...Those bits are pretty expensive. Would've they put this blaster on a milling machine to make that bore, or can these bits be used on a drill press?

Has anyone else used this bit to make that bore on the Han ANH blaster?