While I love power tools of all shapes and sizes, I don’t own many due to the lack of a workspace in my home. However, I did take enough shop classes in high school to know what a sharp metal blade can do to your finger. That’s why inventor Steve Gass created the SawStop, a mechanism that senses electrical conductivity and stops the blade instantly when it comes in contact with a finger or body part. Watch the above video as Steve and some friends talk table saws for a few minutes. Towards the end, Steve puts his own finger on the line to promote his product and to demonstrate how safe it really is. I think the results will surprise you.