Tangentially related: once done drilling those holes, debur them with a chamfer bit (VERY light pressure, or it'll end up looking like a countersink, unless that's your goal), if they're available, or with a much larger bit.

Getting rid of those burrs can save you from getting cut

Source: first week on the job, mangled my hands, until an older shop guy pointed out why I was an idiot, laughing his ass off at me. Burrs hurt