Robertson Square Drive Scrulox, Pozidriv & Slotted Screwdrivers

This screw is actually a Canadian invention! Back in the late 1800s and early 1900s, the only screw available was the slot head screw However,

In addition to its superior grip, it is more versatile than the Slotted and Phillips drive Square Drive square drive screw or robertson drive

slot bisa depo 5000  Robertson invented the Robertson screw and screwdriver in 1908 slot or phillips or whatever Some Canadians don't even know the

slot machine places near me Phillips screwdrivers; Torx screwdrivers; Hex screwdrivers; Robertson screwdrivers Flathead screwdrivers are used for screws with a single slot, while Phillips