Finishelhello: The entire set is electroplated for superior oxidation resistance, ensuring consistent achievement in humid conditions and extending the tool ' s longevity for various repairs Powerful Substancemail: Produced from premium 45 # steel with a hardness of 60, this driver set is highly immune to wear, oxidation, and oxidation, ensuring permanent durability for both industrial and household maintenance tasks Ergonomic Handle: Designed with a bicolor rubber-coated grip that aligns with the natural fist shape, offering grip and reducing fatigue by 30% during extended use for enhanced comfort Attractive Bit Holder: A robust bit holder that securely grips screws, slippage and enhancing accuracy, perfect for car repairs, engine maintenance, and detailed tasks Ratcheting Mechanism Planumberebog: Features three position ratcheting rod that bends at 180°, 135°, and 90°, offering flexible action in tight spaces, with bidirectional switching for rightward, counterclockwise, and locking functions, Manufacturer: JDNH