Lok-On looks like a 6-point socket, but it's supposed to be eccentrically shaped to grip the middle more than the corners. Claims like it can loosen "up to 85% of rounded fasteners." Sounds a little funny them coming up with that number, but at least it should be very good. The only downsides I can see to this kit is it doesn't come with any flex joints and has only one extension, at 75mm length.*Edit* It's 75mm extension says it can be used as a wobble bar to allow for 15 degrees of swivel, with a "hex-nut end" if additional torque is required.
2) I saw a set from a brand name I forgot, but it has instead of a square drive, it has a hex-drive with a large hole through the middle, allowing it to be put over long bolts. All the sockets have square teeth on the inside, allowing it to grip any shape bolt; hexagon, square, torq, something rounded. They have a demo of at least 6 kinds of nuts that it will grab, a socket tied to the demo so you can play with it and see how it works. This has a few extensions and at least one flex joint. I think because this one doesn't bother with separate metric and imperial sockets, its largest sockets might go much larger, perhaps up to 32mm and it still goes down to at least 8mm.
Too good to be true?
It only comes with a 12 month warranty though the tool shop selling them claimed they have never seen any returns.
It also sells for $99.
