Features: Transform your toolkit with our 1/4 to 4mm Bit Adapter, designs for seamlessly conversion between different tool interfaces, enhancing efficiency and precision in every task. Use selected steel, this adapter set boasts great hardness and durability, ensuring a secure and longlasting performances for both manual and electric Tool. Great for professional repair technicians, craft enthusiasts, and homeowners searching multiple Tool, this adapter set meets the needs of anyone requiring precise and reliable tool conversion. Perfect for a wide ranges of applications, including electronics repair, furniture assembly, automotive maintenance, and everyday household repairs, providing adaptability across various tasks. Each adapter features a powerful magnet that secure holds Bit in place, preventing slippage and ensuring accuracy during use, making it great addition to any precision bit set. Specifications: Component: Steel Product Dimension: As pictures shown Type Option: 01(50mm)/02(25mm)/03(25mm) Package Includes: 1 Set Bit Adapter (5pieces) note: Please allow 1-2cm error due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item.