Description: 【Impact Screwdriver Bit Set】: Electric cross drill bit set is a set of screwdriver bits with a impact tip that securely holds the bits for easy and safe furniture and electrical repairs. 【Accuracy】: Impact screwdriver bit, impact cross slotted drive bit makes sure that each edge can be accurately locked the screws. 【Compatible】: Perfect fit for most manual screwdrivers, electric screwdrivers, electric drills, etc. 【Application】: Cross driver bit is used for home maintenance, car disassembly and assembly, electrician maintenance, electrical and electronic maintenance, engineering maintenance. 【Package】: Contains 6 impact screwdriver bits. Different lengths to meet the needs of daily use. Specification: Material:Steel Size Chart: Model 25mm: Total length 25mm/0.98inch, Handle diameter 6.3mm/0.25inch, Waist length 5mm/0.20inch, Waist thickness 4.2mm/0.17inch Model 50mm: Total length 50mm/1.97inch, Handle diameter 6.3mm/0.25inch, Waist length 12mm/0.47inch, Waist thickness 4.2mm/0.17inch Model 65mm: Total length 65mm//2.56inch, Handle diameter 6.3mm/0.25inch, Waist length 26mm/1.02inch, Waist thickness 4.2mm/0.17inch Model 70mm: Total length 70mm/2.76inch, Handle diameter 6.3mm/0.25inch, Waist length 26mm/1.02inch, Waist thickness 4.2mm/0.17inch Model 90mm: Total length 90mm/3.54inch, Handle diameter 6.3mm/0.25inch, Waist length 26mm/1.02inch, Waist thickness 4.2mm/0.17inch Model 150mm: Total length 150mm/5.91inch, Handle diameter 6.3mm/0.25inch, Waist length 26mm/1.02inch, Waist thickness 4.2mm/0.17inch Package Includes: 6 Impact Screwdriver Bit Set(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.