Klingspor is very good. Just do not let them get old. I bought a lot of 107 6 x 48s different grits at an auction at a very low price. That was 6 years ago. I used quite a few. Now the remaining belts (+-35) are unusable. Works about 3 minutes before falling apart. Apparently the glue has a limited lifetime. The canvas backing has also deteriorated.
Mistakes are proof that I am trying....
Now to remember what!