ASCII_AardvarkInteresting. I don't know who trademarked, patented, or registered the jackknife design, but someone is clearly copying someone else. Body shape is the same, same set screw design, and same torque wrench design.
The DX.com set does have a slightly different set of picks. Most are about the same, but it looks like the key puller on the Southord has been replaced by a half-moon on a curved arm on the DX/Haoshi.
I hate to condone what may be an illegal copy (it's a copy, but illegal?), but I'm very curious. I wonder how the steel and thickness is on the DX set?
BTW, I have two of these Southord jacknife sets that I got on Massdrop. It saved my day once, when I had to access a locked laundry room for water to do a scheduled pressure washing job. But forgot to take the keys with me. It saved me two hours by not having to drive back to the office to get the keys.
This happens to have been the very first time I attempted to pick a lock of any kind, so I'm very pleased it worked when I needed it to.