The Malco Tools MSHMLC1 Hex Drive is a versatile tool designed for 5/16 and 3/8 inch fasteners. Measuring 4 inches in length, this hex drive is perfect for reaching tight spaces and ensuring a secure grip on screws and bolts. Made from high-quality materials, it offers exceptional durability and resistance to wear, making it suitable for both professional and home use. The clean design minimizes the risk of stripping, providing reliable performance in various applications, including HVAC and construction. This hex drive is an essential addition to any toolbox, ensuring efficiency and precision in every project.