I had occasion to use this old power drain snake (the orange frame) yesterday:
It weighs about eighty pounds and has horrible balance for carrying. I concluded it needed wheels. So I put it on wheels.
The cart was something I made years ago for a digital floor scale for the brewery--from a cart I built years before that for a pump. The brewers eventually broke the scale (parts of which I incorporated in my vise stand build) and the cart has sat in the boneyard for the last decade or so, waiting for something to ride upon it again.
The SS upright held the scale readout, so I had to cut off the mounts for that. I found a handy piece of SS tubing to make a handle. The frame of the snake had rubber feet--I removed those. The mounting holes for the feet only went through one side of the square tube, so I drilled them through, then drilled the rails of the cart to match. Some 5/16" bolts and nuts and the snake was mounted.
My heavier Milwaukee M18 drill has a cheap-*** chuck I bought to replace the cheaper-*** one Milwaukee used. It cannot be clamped down tight enough to drill metal with a 5/16" bit. Fun.
Welding the thin-wall tubing to the thicker-wall square section... need I talk about that?
At some point, I'll replace the miserable front casters and the under-size rear wheels. But not today.
Another fifteen minute job. I feel a beer break coming on....