"JA" wrote in message
. ..
We're remodelling a basement and need to remove hard cut (masonry) nails
that are along side a window. There is no way to reach the nails with a
hammer, so pulling them out or pounding them flush is not an option.
(They are in the concrete block wall around a window frame and we need to
remove them to slide sheetrock or paneling into the space.)

Are there saw blades that will cut through them?

Grind them off.