Want to make perfectly straight, rip cuts with your Black & Decker circular saw, but don't have a table saw? This genuine Black & Decker edge guide (part number 381091-00) is the official accessory you need. It's brand new in its packaging. You attach it to the base plate of your saw, set the distance from the blade to the guide edge, and then run that guide along the straight edge of your workpiece (like a board or a sheet of plywood). It acts like a makeshift fence, ensuring your cut is parallel and straight every time. Essential for cutting down large sheets, making shelves, or any project where accuracy matters. If you lost yours or bought a saw without one, this is a must-have upgrade. Unlock the full potential of your circular saw and improve your woodworking results dramatically.