What does a number such as 120 on sandpaper mean?
These numbers stand for the number of particles per square inch. The higher the number, the finer the sandpaper.
Make sure you select the right sandpaper for your application.
Check your state and local codes before starting any project. Follow all safety precautions. Information in this document has been furnished by the North American Retail Hardware Association (NRHA) and associated contributors. Every effort has been made to ensure accuracy and safety. Neither NRHA, any contributor nor the retailer can be held responsible for damages or injuries resulting from the use of the information in this document.