Finger-saving SawStop has been around for a decade, but tool companies aren't interested

In 2002, a startup named SawStop demonstrated a table saw that could miraculously cut through wood, but stop itself dead (video below) as soon as its spinning blade touched skin. The mechanism was incredibly effective, heading off some 2,000 of the nearly 300,000 table-saw-related emergency room visits that occurred in the US since the company sold its first saw. But despite SawStop's effectiveness, the big tool companies still haven't added it to their products. Meanwhile, saw-related injuries ...