Simple—Allen publicized them, stressing how much better it was to have a tool that took more of a lock-and-key approach to ...

An Allen wrench, AKA an Allen key or hex key, is a small hand tool used to fasten screws or bolts with a hexagonal socket.

About the only feature we didn’t see was the ability to read and write common formats like Intel hex or Motorola S-record files. You could use a tool like srec_cat to convert those files to ...