This EKLIND hex key set is a must-have for any toolbox. It contains 18 pieces that are color coded in Red for inches and Blue for metric. The T-Handle hex key provides optimum strength and the cushion grip makes it comfortable to use. In addition, this set meets or exceeds ANSI, ASME, RoHS, REACH, and CA Prop 65 standards. It is a high-quality tool that features a range of sizes and is perfect for any job. Whether you are a professional or a DIY enthusiast, this EKLIND hex key set is an excellent choice.