Yes, sorry, I should have mentionned : I have a drill press and I make my chassis out of mild steel.pompeiisneaks wrote: ↑Fri Jul 17, 2020 5:02 pm I've done similar things with a drill bit but had one grab one or two times and pull through and ruin my hole (making it too big). I've become wary of that method. On the other hand, the deburring tools only take small cuts of metal and work very well imo.
~Phil
The havoc you described might have occured with aluminium, right ?
The softer the material, the more it is subject to what you describe, I think. Wood being an extreme case : almost impossible to chamfer with a drill bit without a drill press. For that I have a chamfering bit, kinda what sluckey shown - just cheaper.
The method you're the most confortable with should the best for you, anyway.
I have almost the same deburing tool you shown - direct from the chinese - by the way. Ain't a bad tool, especially with soft material ...
