Looks like the dreaded Ralph Booth wheel locks. Everyone here has some good ideas.
The pilot holes are the key code to remove the forcing cones. Think backwards !
22 MM Gorilla Grip should be the correct size. Get some bolts that will fit the pilot holes or cut some heads off some socket caps and make 3 or 4 fingers. Insert into the pilot holes and then press the Gorilla Grip over the bolt shanks. Dont need to be long. 1/2 or 3/4 inch length length should work. Just keep pressure towards the wheel. Might take a few tries to get coordinated with a budy.
Your key looked like this.
You need to make something like this.
With McGiver stuff like this. This is a 19mm Gorilla Grip. I would find a 22mm. Short stubby bolts that make the pins. Make sure the need pins in the socket are not shuffling around and that cone will come off.
