Doctor Drivel wrote:

Battery
Impact Drivers give the same performance as a mains powered tool, which
no drill/driver can.

I suggest you go read your catalogues a little more carefully.

The 18V DeWalt the OP refered to has a power *output* of 420W - this
will be significantly better than many mains drills.

If you wanted to stick in a few hundred heavy coach screws, or fix self
tappers into undrilled metal sheet or studding then the impact driver
would be a good choice. As a good general purpose tool however you are
better off with a really good combi drill.



--
Cheers,

John.

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