1. Versatile Metric Sizes: This hex head Hex wrench drill bit set includes 9 different 100mm metric sizes to accommodate a wide range of specifications, providing versatility for various tasks. 2. Superior Material & Construction: Precision-engineered from top-quality metal, these bball end hex screwdriver bits set offer unmatched durability.Heat-treated for longevity, these tools boast a hardness level of 61RCH for consistent performance. 3. Effortless Pick-up of Metal Pieces: These ball head driver bit offer hassle-free screw suction.The hex heads ensure a firm hold on your screwdriver and a tight grip on screws, boosting your work efficiency with ease. 4. Flexible Use at 25° or Vertically: Designed to handle screws vertically or at an incline of 25°, these metric hex bits are ideal for working in limited spaces.Their flexibility makes them a reliable tool for various jobs. 5. Ready-to-Use & Portable: This Hex key drill bit is ready to use out of the box and easy to carry, making it an ideal tool for automotive, home improvement, manufacturing, construction, and interior decoration industries. Type:Screwdriver Set Model Number:Ball End Hex Screwdriver Bits Set Shank type:6.35 mm (1/4 inch) hex name:Hex wrench screwdriver bit Head type: ball head Colour:As Shown Material:Metal Package Contents: 10 * screwdriver bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.