Belt Sanders Guide: What They Are and How to Use | Family …
Start at an angle to the grain for aggressive leveling, then finish with the grain. 80-grit is good for starting, then switch to 120-grit. Family Handyman. How to Choose the Best Belt Sander. The best multipurpose belt sander takes a 3-in.-wide belt. You'll see machines designed for wider and narrower belts, but they're for specialized tasks.