- - Universal: our set of hex keys is equipped with a spherical head for an inclination of up to 30 degrees to carry out work in precision mechanics, watchmaking or model making. Long sleeve design for greater reach, better leverage and tightening torque Beveled ends for easy insertion. - - Wide Application 9 L Series Standard Hex Socket Metric Sizes: 1.5mm | 2mm | 2.5mm | 3mm | 4mm | 5mm | 6mm | 8mm | 10 mm and with foldable support for space-saving hanging. Long arm, to quickly tighten or loosen the fastening elements ideal for working on bicycles, motorcycles, vehicles. furniture, machinery, etc. - - Rust-resistant color coating with serious size - Rust-resistant surface finishes impacted hex wrench life and performance. The different grave colors and sizes make it easy to get the eye tool you want and use the most suitable buttons. . - Quality All hex keys are DIN 911 compliant and all keys are designed for continuous use using high quality CRV steel. So that you can enjoy it for a long time. - - Lifetime warranty - If there are any defects, please contact the seller first. We help you with our lifetime guarantee.