Jeanne wrote:

snip


Oh good. That sounds like what he wants. The previous owner of our
house covered up the window wells when the back patio was poured. We
want to get rid of the concrete over the window wells. It sounds like
the rotary hammer is a better tool for that.

For a job like that I'd rent an electric chipping hammer such as this:

http://www.envisupply.com/rentals/su...Jackhammer.htm

--
Jack Novak
Buffalo, NY - USA