• Professional set of 9 long-arm hex keys with ball end • Made of chrome vanadium steel, strong and durable • Heat treatment for hardness above HRC56 • Non-slip coating that improves grip • Beveled tips for easier entry into openings • Spherical end design allows access to screws with an entry angle of up to 25° • Black oxide finish protects against corrosion • Includes flat, ball, and Torx heads for greater versatility • Hinge case makes it easy to remove and store the keys • Protective packaging prevents damage during transport • Long-arm keys provide greater reach and torque • Use the flat head to save effort and the ball end for quick insertion • Included sizes: 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm (hex) and T10, T15, T20, T25, T27, T30, T40, T45, T50 (Torx) • Material: chrome vanadium steel • Surface treatment: black oxide finish • Hardness: HRC56