Review on 7-Piece Double Ended AN3-AN20 Aluminum Wrench Hose Fitting Tool Spanner Kit by Ronald Howlett

Wide range of sizes from very small 3AN fittings to huge 20AN fittings in anodized aluminum. They fit perfectly and so far I haven't scratched any hardware while using them. The buttons are color coded and clearly labeled on both sides. This set is as good as any AN key I've used and has been a much needed tool in my tool box since I first started using AN fittings on my car. No complaints and they seem well built to withstand many years of repeated use.