Z wobble Fix For M6 rod

I had a cheap chinese printer with M5 rods which wheren't doing a good job, so in order to avoid printing a whole new set of parts for M8 Rods, i sanded down the holes of the Z rod to make it capable of using M6 ones:
The Antiwobble typical is for an M8, and the knob of the M6 wouldn't fit right. so here is a mini fix.

Did the piece all over again, with smoother surfaces and a little fillet on the base for easier removal from the bed.