Using the Makita 9-1/2-inch long circular saw rip fence is quite straightforward. First, attach it to your Makita circular saw (it fits the 5007F 7-1/4-inch and 4200H 4-3/8-inch models). The attachment process is quick and easy. Before you start cutting, use the guide to set the width you want for your material. This will help you get a uniform width across all your cuts. When using the saw, make sure to hold it firmly and follow the marked line. As for maintenance, after each use, clean the rip fence to remove any sawdust or debris. Check the attachment points regularly to ensure they are secure. Store it in a dry place to prevent rusting. Also, be careful when handling the saw and the rip fence to avoid any injuries.