One of the parts I'm working on needs a big (0.150" diagonal) 45deg chamfer around a contour. I looked around my tool tray (just kidding, they're all over the place) and thought a 1/2" spot drill might work. It's what I normally use for chamfering, but I had never done a chamfer that wasn't just breaking the edge.
Anyway - it SORT of worked, but not well. I think I missed the ideal feedrate by A LOT, the tool rubbed and made a horrible mess. I'm sure I can improve it by doubling the feedrate (I was at 2500 and 15ipm..) but it still feels like it isn't the ideal tool, at all. A ball end mill and some creative programming might work better, but what's the simple solution I'm missing here? I'm sure there's an easy way of doing this that I'm forgetting about.
Any thoughts?