GONRA realizes that tiny nr. drills are best purchased in packets of 10 and "used up".
BUT - years ago, for yet another "pointless retired man project" made an "eccentric spindle indexer"
for my SB 10K lathe. Just screws on the spindle.
Two 1 inch - 40 thread screws "clamp" sliding cross key with 5/8 hole
to get desired eccentricity needed for grinding radial clearances.
5/8 shank ER-16 and ER-20 chuck holders hold the small drill, end mill, tap, etc. too be ground.
Sounds like a crappy design, BUT has no practical drill shank length restriction and can handle 1, 2, 3, 4 flute cutters.
45 X Skoda centering scope in tailstock is used for initial flute/lip angular line up.
Use a cheapo Harbor Freight grinder with quick change on lathe compound to get point geometry/angle.
Have sharpened 25 mil drills in this setup, made "drill mills" out of 3 lip end mills, etc.
Really can't burn the part since there is great heat transfer cooling the rotating part.
Yeah, its Pretty Pointless. But will come in handy if the firing pin in my Bernadelli .22 RF Long vest pocket pistol ever breaks!