The most common specialty screw bits & drives in the Automotive & Diesel Industry

For years the most common specialty drive was the Hex. It was either a slotted, Phillips or Hex. They come in both SAE and Metric. Nothing too exciting.


This is a Double Hex Drive. It has two coaxial offset hexes - not as easy to see with the naked eye. I usually follow - look at the top - can I lay three boxes across the face. Yes - triple square, not double hex drive.

This is the pentacle drive. So much for it - if looks like a duck.. quacks like a duck. You have to count the points. This is often confused with a Torx.

This is the ribe drive. It can not really be mistaken for anything else besides a bit you do not have in your tool box.

This is a mortorq. This is being used in more and more interiors.

This last socket is the Torx Plus. It is just like the torx but a little larger and beefier. You can not remove these with a standard torx but hopefully the extra material will keep the bits from breaking as often. When I talked with our in house automotive expert, he asked if I wanted the top bits or wanted to write a book. I am still looking for that spline bit but was told it was used in aviation. I do not want to begin to open that can of worms, plus it might get me on some kind of watch list (again). If I have anything wrong please let me know.
On a parting note... one of my biggest fears is that if anything ever happens to me, that my wife will sell my crap for what I told her I paid for it.

