7pcs Drill Bit Adapter Set, Fits Industrial Standard Threaded Interface, Quick Change Adapters, High Strength Hexagonal Shank Anti-Slip Anti-Fall, All-In-One Multifunctional Conversion Kit, Efficient Construction, Metal Material Wear-Resistant And Corrosion-Resistant, Suitable For Drilling, Screwing, Mixing And Other Scenarios, Professional-Grade Tool Accessory To Improve Work Efficiency