Metalite by Norton
- 2"x72" belt
- P graded AO
- Flexible J Weight cloth backing
- Advanced full resin bonding for exceptional grain adhesion and longer life
- Greater cut rate than competitive products
- Quantity pricing is in place
These belts are very flexible. "Jflex" is the most flexible and then J weight. The difference in practical use isn't much.
Metalite are a premium AO product by Norton. These cost just a bit more than other J type belts but I think you will find they outlast them by enough to be cheaper in the long run. Try a couple and see.
Use these with a slack attachment or slack area in your grinder or sander. Highly recommended.
"P" rated abrasives are close enough to typical Grit rated abrasives that you really don't need to worry about using them interchangeably with Grit graded abrasives.