Quick and Easy Way to Put Uniform Set of Holes in Plastic Containers

[Theneil]

Yep, you just need a bench grinder.
I've taught everyone at work to sharpen them and we have saved so much money on blunt and broken drill bits.
I can make a quick YouTube video on Monday for you, but one probably exists already. Let me know how you go, it's very simple and straightforward and is easy to master. They sell little machines to do this but they are downright horrible and I've yet to see one that does a good job.

I have used the drill doctor brand, and on a typical twist drill at 118 degree tip, it tends to do fine on .25-.5” diameter drills. I haven't used them a bunch, but never could get other tip angles, high helix, or larger than about 1/2” to grind right. usually the rotation is slightly off and takes more fiddling with than it is worth, but when it does work right, it is kinda nice having them turn out perfectly symmetrical. I don’t resharpen often enough, so when i do have to do it, it takes a bit of warming up before i get both flutes even.