A table saw fence is an essential tool used in woodworking to ensure accurate and straight cuts. It acts as a guide that helps position the wood securely against the saw blade, allowing for consistent measurements and reducing the risk of errors. There are various types of table saw fences, including the standard rip fence and the more advanced sliding fences. A good fence should be easy to adjust, lock securely in place, and remain parallel to the blade for optimal performance. Proper use of a fence enhances safety and improves the quality of the finished project.