With Robertson and even Phillips widely available, why in the world

With Robertson and even Phillips widely available, why in the world slot robertson screw Slot type are also included because that is where the screw began and a double slot becomes a cross drive, and the Robertson or square drive enter the story slot car dealers 8pcs Robertson screwdriver, there is a size to fit every type of Robertson screw

slot car dealers The square-head screw was invented by P I Robertson, a Canadian, in 1908 It offered a big advantage over the slotted screw head because

slot pg เครดิตฟรี If any one thing distinguishes Canadian home improvement from American home improvement, it is the Robertson screw  Truss Head : low profile semi-elliptical top with flat bearing surface Combination Drive with Original Robertson® square and flatslot drive It is recommend