Originally Posted by Road Fan

This is mainly what's the best tool to cut a steel steer tube. The steel is an un-named CrMo, unknown if it's heat-treated.

I figure a hacksaw with a fresh blade is the best choice (and it's what I have!), but is how many teeth per inch is best? I have a good 32 tooth blade, or should I use 24 teeth? Plus are there blade features that I should look for to make a cleaner cut, i.e. less final filing or deburring? Use a cutting fluid? or just jig it up and start sawing?

I'll make up a fixture from some scrap wood and C-clamps, mark the cut point with a small triangular file, and chamfer/clean the cut zone with a mill bastard file. I don't have a guide for a square cut, but I seem to do those pretty well by eye. In any case I can square it up by hand.