Fangrui Product Details [flexible Drill Bit Extension]the Flexible Drill Bit Can Be Used For Ordinary Hand Electric Drills And Electric Drills With Performance. It Can Be Bent, Twisted, Turned, And Used In Narrow And Narrow Spaces. Let Our Flexible Drill Bit Extension Tool Help You Solve More Problems Quickly. [size] The Size Of The Connection Part Of The Hexagonal Shank Bit Is 6.35mm (1/4inch), And The Size Of Theinternal Hexagonal Head Connector Is 6.35mm (1/4inch). For Reaching Tight Corners And Hard-to-reach Places. [material]flexible Drill Bit Is Made Of High Quality Metal Hexagon Head, With High Processing Accuracy. Metal To Withstand Frequent Use And Provide Long-lasting Performance. [easy To Use]drill Bit Screwdriver Flexible Is Universal In Any Directions, Allows You Get Into Those Difficult Places And Get The Easier And Quicker. Flexible Drill Bit Compact Size Allows For Easy Storage In Your Toolbox Or Pocket. [scope Of Application]this Flexible Screwdriver Is Mainly Used In Narrow Spaces Where Compute