Peter Roberston Is My Hero

We Canadians have long understood the value of the Robertson screw, invented by one Peter L. Robertson in 1907. Unlike Phillips- and slot-head screws, they don't cam out or strip easily. Also, with a well-made bit and well-made screws, the screw will stay securely on the tip of the driver. How well? These two pictures … Continue reading Peter Roberston Is My Hero