The different types of grinding flap discs and what they are best used for.

[@Eric19401]

This was an ideal introduction for someone new to angle grinding - thanks.

[@alternativeweldingfabrication]

Your welcome.

[@lakerdigital]

Thank you from Minnesota USA.

[@alternativeweldingfabrication]

You're welcome!

[@IVAN_ENT]

Helpful vid cheers

[@alternativeweldingfabrication]

Thanks, glad to hear it

[@StirSir]

What type would be ideal for 90° welded corners? for mild steel and stainless steel

[@alternativeweldingfabrication]

To leave a perfectly flat surface I would take to top of the weld of with a flap disc like a 40 or 60 (ceramic for stainless, zirconia for mild) taking care not to gouge the material and leave low spots. I would then take the rest of the weld of with a 120 flap or even better a resin fibre disc. There are a lot of options it just depends what final finish you want and how much time you want to spend doing it.

[@scandinavianflickgd7331]

What type of wheel would be best for things such as aluminum brackets?

[@alternativeweldingfabrication]

For aluminium we use zirconia. We use 60 or 80 grit for heavy removal and 120 for finishing.

[@scandinavianflickgd7331]

@@alternativeweldingfabrication Thanks for the insight.

[@markhunt6573]

What works best for lawn mower blades

[@jouki3]

is any of these suitable for wood?