Yes, I know it's a square bit and pretty sure it's a #2. I had to call my trailer salesman when I needed to do repairs thats what fit it.
David

#2 square bit for sure. Dewalt bits seem to last longest and work best. The 8 points make it just that much quicker to get the bit set in it. They actually do work better than a phillips, not sure on a comparison to a torx one.

.....they don't pop out so often and mess up the white aluminum[fubar].....also if S/S screws-they don't drop out of the bit...magnets don't work on S/S like coated steel....its a #2 square for sure....keep the fingerprint grease off the bit or it pops out easy....clean with alcohol rag when driving so as not to get any oil or grease on screw tip.....change often maybe every 100 screws....they do wear somewhat as they are used.....geofkaye

The Freightliner service manager that I spoke with says that Mercedes engines cannot be upgraded in the field -- whatever rating they leave the factory with is what they stay with.

Let us know if you find out that your Freightliner dealer will 'field tune' your MBE926 engine up to 330 HP from the as-shipped rating of 300 HP.

I thought that the main advantage of the 330 HP engine is that also torque raises from 860 to 1000 lbf. Can this be done with upgrade chips?

Walter

That elevation of the torque rating MIGHT also create issues with the drivetrain(or not?). The higher rating might require (on paper anyway) a tranny upgrade.
These are all speculation on my part, but may be the reason that field upgrades might be difficult if not impossible.

#2 Robertson.

Very common in aviation.
When you look at the robertson tip it is square. Your screw is an 8 point kind of like how you can get 12 point sockets for hex heads.

As I mentioned I would have never thought to use a square bit for that. Actually, finding alot of screws are using combined phillips and that #2 square bit.