318 head porting for the average joe

Marcelo Dart BR said
Nice! Do you think I'm ok with the stones and the cartridge rolls or I may buy a carbide bur?

rolls i spect are good for smoothing the short turn, but i like a almond head bur for doing the far side bowl, between guide and walls, corners...etc.

Larger barrel head cutters/burs are good for wall/roof.