American Broach was founded by Lapointe's son, Francis, who is often called the father of modern broaching. According to John Podesta, chief engineer under Francis Lapointe and later general manager of American Broach, "Lapointe had a genius for knowing and inventing tools. He could throw out ideas as fast as you could catch them."

The founder of American Broach, Francis LaPointe, lived in an elegant Sears home (since torn down) at 4158 Washtenaw, so big it included a ballroom in which Henry Ford once danced.