Set Composition: Includes 9 metric hex keys in standard sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10 mm.
Material: Crafted from Chrome Vanadium (CR-V) steel, which is heat-treated for enhanced durability, higher torque, and resistance to warping or breaking.
Hardness: Quenched to reach a hardness level of up to 50 HRC for industrial-grade strength.