The thing with the Drill Dr is to not let them get too dull.
It works well for touching them up.
When I did it a lot......by hand was fine. About 28 years ago I got a Derek. Collet style double wheel.
$1200 and worth it. Sharpen any angle and then split point it.
Like a chainsaw chain. Touch it up before it gets round.
Then Take a Cratex and run itt along the edge to smith it out.
And don’t drill so dam fast. Lower the RPM and up the pressure......drills last longer.
