"Mark" wrote in message
...

wrote in message
ups.com...
I see these in the Screwfix catalogue, Impact Drivers. Anyone know what
that is? Does the drill hammer? Is it just a drill/driver without a
chuck? What is the advantage? Also, Drywall Drivers, also in Screwfix,
what do they do over a drill/driver? If a tool can save me time, effort
and produces a better quality job, then I am always interested.

See

http://www.dewalt.com/us/articles/pr...ase.asp?ID=832

never intended for fixing small wood screws,

They can fix small screws.

up a ladder or anywhere else.

They can be used up a ladder, as these trades tend to use ladders:

"The new cordless impact tools are designed for professionals on the job
site and in the shop including HVAC installers, garage door installers,
sprinkler fitters, general contractors, elevator mechanics, electricians,
steel framers, carpenters, and automotive mechanics who want faster
productivity for their fastening and driving applications"