Third-sheet orbital sanders are typically slightly bigger in size than quarter sheet sanders since they use a larger sized sandpaper sheet. This makes these sanders a medium-sized sander that are useful for sanding relatively small areas and depending on the grade of sheet used, to a fine finish. Use these sanders to sand wood, walls, paint and also buff metal.

• The key consideration when choosing an orbital sander is the size & shape of pad most suited to the work. Third sheet orbital sanders are for medium sanding tasks.

• Some orbital sanders have a variable speed function ie. allowing for a slow start on the trigger. Additionally some have more than one speed setting. Most sanders are mains operated although there are some cordless now coming to the market. **Battery words**