Once you’ve got a solid set of ratchets, sockets, and some pliers, the next good thing to get is a set of hex-head (like Allen keys) and Torx bits. These really come in handy when working on German ...
The cut off piece of hex key must be square to use as a broach. Run the hex-key broach into the workpiece to produce a hexsocket pattern. A finished lefthand 1/4-20 screw with custom head made using ...