Festool 577041 Angle Stop Guide Extension FS-WA-VL is designed for repeatable precision in your cutting tasks. This extension allows the FS-WA angle stop to be lengthened with a guide extension that features a scale and an adjustable stop, making it easy to achieve cuts to size with consistent accuracy. It is i for sawing panel cuts to size, enhancing efficiency and precision in your woodworking projects. Model Number: 577041