Copper Pipe Expander Set, Hand Electric Drill Dual-purpose Expanderpipe Bell Mouth Expander Air Conditioner Expander ST-519 ,Portable

Manual mode:Fast and efficient,Highlight professionalism everywhere Continuous one-way rotation action Electric drill mode:The electric drill needs a torque protection mechanism,Otherwise improper operation,It's easy to hurt your hands SAFETY SLEEVE:DUST PROOF AND SCRATCH PROOF STOP PLATE:With a limit slide in and out of degree DUSTPROOFMECHANISM:Multiple processes to create the thirdgeneration of electricdrill diffuser with love