Pipe Cleaner

At the time, I need a pipe cleaner for my fondation tube. some little rock block!
I design it with ball bearing for the full rotation with 8 holes at the back to help the rotation and the forward movement, 3 on the front to drive on the mud. When you put the 1/4-20 button head be aware, I broke two part where the water hole are. I rethread with a tap.