/diy/ - Do It Yourself

>>1902855
>this video literally tells you to damage (dull) your drill to get better results?!?!?!

Yes, because he is a retired machinist who ran his own shop for 40 years and understands edge geometry for different materials. He has multiple tutorials on how to hand sharpen different drills for different materials anon. You are sitting here with a hand drill and a fucking nail and cant get a straight hole.
You want negative rake, you do not want a sharp edge. Its one of the most basic principles of drilling milling or turning any brass or plastic in machining.

>>1902855
>Ordinary drills for metal do the job fine.
If they "did the job fine" you wouldnt have made this thread now would you?

From your post it sounds like you know it all, but I take solace in the fact that other non machinist anons here dont have their head up their ass and may have learned something new.

Here is one of the most popular machinists on youtubers doing the same exact thing.
https://www.youtube.com/watch?v=pAngKHIZgyA

>>1624859
>getting a crappier tool in the first place because you are paying for a charger and batteries to be added onto the drill, just to have a bad shelf life and the inconveniences of batteries

Or you know, when he decides to upgrade his tool in however many years, he could have his old trusty corded drill still kicking while he gets something higher end.