Festool 204929 Key KF-AGC 18 is designed to make loosening the quick-action clamping nut effortless and fast, especially when it is too tight to loosen by hand. This handy tool is compatible with the Festool AGC 18 Grinder, ensuring a fit and reliable performance. Its ergonomic design provides ease of use, making it an essential accessory for maintaining your grinder efficiently. Model Number: 204929