that's so not true.
A dremmel uses a collet system to exchange bits that have two shaft sizes of 1/16 in. or 1/8 in.
most drills use a toothed chuck (often keyless) that have shaft size of potentialy infinite diameter usualy ranging from 3/64 through 3/8 of an inch
larger drills use larger chucks up to 5/8 in.
a dremmel uses the collet system because the rpm range of a dremmel tool is 500-15000 rpm. it has very little torque. A dremmel tool is not designed to drive a large keyless chuck--let alone a huge bit or socket at those speeds.
Drills have a more limmited rpm range. We use three different drill/drivers on the job. One has a range of 0-2500 rpm. We use it for puting medium size holes in things and driveing screws. One has a range of 0-750 rpm. It looks almost exactly the same as the first drill but it has more torque, (up to 45 lb/ft i think) and we use it for putting holes > 1/2 in. in things. The third is bigger, it has an entirely different type of chuck called and STS chuck which allows the bit to slide back and forth while it's driven in a circle, this is the hammer drill. We use it for putting holes in concrete. At home I use cordless versions of the first two.
We also use an electric impact wrench. it uses a 1/2 in. drive socket system.
My point is; maybe in 2070 there are motors capable of providing extremely broad torque ranges at varialble rpm from 0-15000 but that motor alone is going to take up some serious cf, not to mention the different anciliary systems you use to connect bits, tools and drivers.
It's true that the hand is the most versatile and well developed tool ever invented but;
I honnestly wish I could replace my hands with ones that had
hardened working surfaces,
improved griping power,
driver bits that would come out of the tips of my fingers,
fingernails that could cut wire,
a razor blade that would come out of my thumb,
A weighted hardened hammer head where the top knuckle of my little finger is,
a marking pencil in the tip of my middle finger,
a muti testor with leads that pull out from between my knuckles and a digital screen in the back of my hand,
a laser pointer range finder,
a gps accurate to two mm connected to my fingertip marking pencil,
files and micorplanes grafted on the backs of my knuckles,
a small oscilating saw blade attatched to the side of my hand,
compression driven chisels in other finger tips.
a small cold heat soldering iron... somewhere
a circuit tester in contact pads on my finger tips,
an MCU jack in my palm (for engine diagnostics)
one of those telescopeing antena looking thingy's with the magnet on the end for when i drop a bolt.
Ect. & Misc. adnausium
Oh; and I want pain cutouts So I don't have to feel it when I try to turn a nut off with my cold fingers, pick up a hot piece of mettal, get shocked by a hot leed, or pound my F!#"$!#ing thumb!
If I could go to the hospital and get something like that tomorrow I'd mortgage my house to do it. My wife would hate them, I wouldn't be able to run my fingers through her hair. But I'd do it because work would be so much more fun.
Mind you, even if I had those hands, I'd still have to carry three tool boxes and wear 25 lbs worth of tool belt because even those hands cant replace all the tools I need to do my job. In truth I'd settle for just the fingertip marking pencil. (HAH. try to borrow that one you pencil thieving priks!
)
Also, don't forget that half the time we use tools on a job because our hand's/fingers won't reach or are just not configured properly. If I wanted to replace my tool belt and boxes I'd need somthing like the liquid mettal body from Terminator 2. [edit] I wonder how my wife would feel about that!
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