نظرة عامة3Pc Square Drive Power Drill Bit Nut Socket Driver Adapters turns any Power Drill or Impact Driver into a Speedy Nut Driver to use with all sockets to tightenloosen Hex Screws Stubborn Nuts and Lag Bolts to get jobs done powerful and fast SPECS Hex Shank Drive Length 14Inch 3 Square Drive Sizes 14 38 12 Materiel CRV QUALITY Made from HeatTreated Hardened Chrome Vanadium CrV Steel to ensure a long lifetime through tough torque jobs without breaking or rusting Heavy Duty Construction to be compatible with the most powerful impact guns DESIGN The Shaft Quick Change Hex Design allows to switch easy fast between the different size adapters without stripping at high speed operations Sandblasted Finish for best durability Spring Loaded Extension Ball Bearings holds onto the sockets securely preventing falloffs USES Attach these Versatile Extender Bars to any PoweredCordless Drill Chuck or Impact Driver to turn it into a HighSpeed Nut Driver Useful for Automotive Mechanic Vehicle Repairs Technicians Handyman Hobbyist Developments to use with sockets on HardwareTire Nuts Lag Bolts Hex Head Cap Screws at Home Workshop Factory or Construction Site