Can I Use a Random Orbital Sander as a Polisher?
In the world of DIY woodworking and refinishing, it's common to have a few power tools that serve multiple purposes. One question that often arises is whether a random orbital sander can be used as a polisher. The short answer is yes, but with some important considerations.
Understanding Random Orbital Sanders
Random orbital sanders are versatile tools designed for sanding large, flat surfaces. They work by spinning a sanding disc in a random orbit, which helps prevent swirl marks and provides a smooth finish. Their variable speed settings allow them to handle a wide range of sandpaper grits, from coarse to fine.
What About Polishing?
Polishing is a finishing process that involves buffing a surface to a high gloss or matte finish. It's typically done with a polishing compound and a buffing wheel. Unlike sanding, polishing doesn't involve removing material; instead, it smooths out the surface and brings out its shine.

Can a Random Orbital Sander Do the Job?
While a random orbital sander can be used for polishing, it's not the ideal tool for the job. Here's why:
- Speed Matters: Polishing requires a slower, more controlled speed than sanding. Most random orbital sanders don't have a low enough speed setting for effective polishing.
- Disc Size: Random orbital sanders typically use 5-inch or 6-inch discs, which can be too large for small or detailed areas. A dedicated polisher would have smaller, more versatile buffing wheels.
- Polishing Compound: Random orbital sanders aren't designed to hold and apply polishing compound effectively. This can lead to a messier workspace and less efficient polishing.
When to Use a Random Orbital Sander for Polishing
While a random orbital sander isn't the best tool for polishing, there are situations where it can be used:
- Large, Flat Surfaces: For large, flat surfaces like tabletops or cabinet doors, a random orbital sander can be used to apply a polishing compound and achieve a smooth, glossy finish.
- Between Sanding and Polishing: If you're transitioning from sanding to polishing, a random orbital sander can help smooth out any remaining imperfections before applying the polishing compound.
Alternatives to Using a Random Or