Best drill, best bits?

[keyway_grooves]

How many use multiple drills, like some combination of regular drill, hammer drill, and impact wrench? What's best for access control installations and larger hole cutting, and doesn't wobble? Do you clip it on a belt, and maybe have a sub-compact for common work before you pull out the heavy artillery? Would you still go corded now when battery powered is now strong enough even for breaking lug nuts? If so, do you run with an inverter / generator to make that happen or are car locksmiths well divided from commercial/residentials who can use extension cords?

[mdc5150]

Milwaukee cordless for doing everyday stuff including fresh installs on doors. I use a cordless SDS drill for putting holes in concrete and have never had a problem. I have a couple corded drills that I only use maybe 2 or 3 times a year.

[Jaakko Fagerlund]

Festool has been working for both me and my friend has used his first one for 13 years without any problems. Does most of the screws too, but mainly a drill/polisher/hammerdrill, as it has hammer option, and the top speed is 3800 rpm making it nicely suitable to drill small holes and grind things with.

Brushless motor, so nothing wearing out in it. Eletronic torque limit, just peeps when set torque is exceeded or the maximum is exceeded in drill mode, so it doesn't want to desroy itself.

Haven't yet found anything that comes close to the specs on this one.

10 year guarantee to get parts from factory, 3 year Service All Inclusive -warranty replaces anything worn, and 3 year theft-warranty (you get a new one for 100 or so if previous is stolen).

[Krull Cat]

I find that Machining - Milling End Mills will generally eat through anything I throw at them and last quite a while.

I have yet to meet a vault that didn't open up to these bits. But then again how do you harden a 12 foot door?
I mean who makes ovens that big?

Still, hardened steel past the normalized state will cave to these bits at the right speed with proper cutting oils.