Cross wall galvanized pipe and change instrument

The utility model provides a cross wall galvanized pipe and change instrument, including the spanner, said spanner still includes sleeve and adjustable reamer including controlling end and exposed core, the sleeve includes that the spanner cup joints end and adjustable reamer link, the adjustable reamer is including compressing tightly end and muffjoint end, telescopic spanner cup joints the pot head and connects in the exposed core of spanner, telescopic adjustable reamer link is connected the muffjoint end of adjustable reamer, the utility model has the advantages of: through spanner, sleeve, the combination of adjustable reamer need not to carry on high do-nothing operation, and factor of safety is high, can be according to the crossing the wall galvanized pipe and compress tightly and unscrew of different diameters through being equipped with the adjustable reamer, working strength reduces, and efficiency obtains improving