The sounds of power tools humming and hammers hitting nails were heard Saturday as sawdust particles floated through the air at Howard Brothers hardware store in Oakwood. It wasn’t because of a new construction project, but women learning proper techniques and safety of different tools used for different construction projects. The “Use of Hand and Power Tools” class was part of Habitat for Humanity’s Women Build program and is a nationwide program that normally takes place the week of Mother’s Day, said Tim Williams of Habitat for Humanity of Hall County.