As promised a few photos of the tools i currently use.
Metabo high speed die grinder goes to about 27,000rpm uses the flexi shaft from the same maker and is rated to the speed of the grinder.
Has a compact head and is very user friendly gets in to the tightest of spaces but heck its expensive.
Cost almost as much as the grinder itself.
Quality item tho so no complaints.
Two split fork deburrers.
The one on the right is for final finishing.
The left one can be used to smooth the surface of carbide cutter marks.
You just have to be careful to start the grinder with it in the port tho or it whips around.
Oval carbide burr- the best shape for general work in the ports that ive found.
