Highlight description: _x000D_ _x000D_ [S2 Alloy Steel Material] This 1/4inch hex head Allen wrench drill bit is made of S2 alloy steel, and the hardness can reach HRC60 degrees. After heat dealing, it ensures durability and high hardness, not easy to wear. _x000D_ _x000D_ [Magnetic Tip and Heat Shrinkable Tube Design] The magnetic tip helps keep nuts and bolts adhered to it, improving work efficiency and having a wider application range. The green heat shrinkable tube design is not only beautiful and practical, but also adds to the uniqueness of the product. _x000D_ _x000D_ [Metric Size] The metric sizes include 1.5/2/2.5/3/4/5/6/8/10/12MM. It adopts phosphate black technology to ensure the high-quality appearance and service life of the hexagonal wrench drill bit set. _x000D_ _x000D_ [Practical and Flexible] The professional bit length is 100mm (3.94inch), which is longer than the average length on the market. It is more effective in a wider range of application scenarios. The customized round handle design increases flexibility and torque concentration, providing better craftsmanship and use experience._x000D_ _x000D_ [Widely Uses] The round handle and green heat shrink tube not only provide a good appearance, but also show the great quality of the product, suitable for various scenarios. Specification:_x000D_ Product Name: 1/4inch Hex Head Allen Wrench Drill Bit Set_x000D_ Material: S2 Alloy Steel_x000D_ Metric size: 1.5/2/2.5/3/4/5/6/8/10/12MM_x000D_ Process: Phosphate Black_x000D_ Suitable for: 1/4inch Hex Head Precision Craft Hex Wrench _x000D_ Color: Green _x000D_