Shaper Keyway Cutter for Pulley

[turbo711]

Hello Black Forest. I was thinking of doing what you said, but then I thought it would keep the bit tighter in the groove if I machined it instead. I didn't want to bellmouth the hole too much with filing, because I'm terrible at filing a flat surface. The filing was done just to clean up the weld on 2 corners of each side. The bit is held by a set screw in the center of the shaft. You can't see it from the side view. You can just make it out in the pre-welded parts pic.

Mark