LS 309 J File belts for Metals, NF metals, Wood
Properties
| Bonding agent | Resin |
| Grain | Aluminium oxide |
| Coating | Close |
| Backing | J-cotton |
Materials
| Metals | |
| NF metals | |
| Wood |
Applications
| Metal construction |
| Wood processing industry |
Advantages: Good abrasive performance for working on slight contours on metal and wood