Feature: 1. Impact Grade Construction: Manufactured from premium impact grade chrome molybdenum steel construction for high durability and wear resistance. 2. Multiple Sizes Included: Includes 7 pieces of 3/4 inch drive impact hex bits and 2 pieces of M16 M18 spline bits to cover a wide range of sizes application. 3. High Torsion: Solid construction eliminates weak points, providing strength and flexibility to handle high torsion impact. Size markings are etched for easy reading. 4. Enhanced Practicality: High contrast size marking makes it easy to identify the right size even in low light conditions, improving efficiency and accuracy. 5. Wide Application: The 3/4 inch drive impact hex bit set is suitable for impact hex and spline screws, with hex bits ranging from 14 to 24mm and spline bits for M16 M18 sizes. Specification: Item Type: 3/4 Inch Drive Impact Hex Driver Set Material: Cr‑mo Hex Bits: Approx. 14mm / 0.55in, 17mm / 0.67in, 19mm / 0.75in, 21mm / 0.83in, 22mm / 0.87in, 23mm / 0.91in, 24mm / 0.94in Spline Bits: M16, M18 Package List: 7 x Hex Drill Bit 2 x Spline Drill Bit 1 x Storage Box