Fangrui Product Details Connection Safety: Our Tightener Adopts A Closed-loop Design To Tight Twisting Between Wires, Reduce The Risk Of Loosening And Separation, And That The Wire And Connector Are More Firmly Connected And To Use Easy Installation: The Twisting Machine Is Simple To Operate And Can Be Connected To The Drill, Which Can Effectively Relieve Hand Soreness, Reduce The Difficulty Of Operation, The Assembly Process Of The Switch And Socket, Save The Time Of Nut Tightening, And Greatly Improve The Work Efficiency Of Electricians Or Construction Personnel Safe Material: The Wire Is Made Of High-quality High Density Polymer Material And Insulator Material, Eye-catching Blue Is Easy To Find, Can Be Used For A Long Time, , Small In Size, Does Not Occupy Storage Space, Easy To Carry, Is The Choice For Twisted Wire Tools Broad Compatibility: The Wire Twisting Spinner Is Fitted With A 1/4 Inch Chuck For Almost Any Style Or Of Twisted Wire Connector And Is Also Compatible With The Most Commonly Used Drill And Driver S