The 9-piece Bosch hex key set provides a new level of flexibility and convenience for domestic mechanics and assembly tasks in DIY. Each key in this practical set is made from the finest S2 steel and has a nickel coating with a matte finish. This ensures very high rust resistance and a long service life. For problem-free use and flexible maneuvering in slots, all keys have a ball end for a 30-degree tilt, while the keys with a long arm provide greater torque and are optimal for working in tight spaces. The 9 hex keys are practically held together in a 'click-lock' storage clip with corner stops for easy removal of the keys. Special featuresDurable and protected against rust, made from superior S2 steel and nickel coating with matte finish Ball end allows for a 30-degree offset for problem-free insertion of the hex keys Long-arm keys provide higher torque and greater reach, especially in tight spaces 'Click-lock' clip for practical storage Storage clip with corner stops for quick and easy removal of the hex keys Technical dataMaterial: S2 steel Surface: Matte chrome-plated Profile: Hexagonal Hardness of hex keys: 52-57 HRC