Monument 341J Adjustable 2 Jaw Basin Wrench - DIYMonument Adjustable Fitted 2 Jaw Wrench (DIY) is an adjustable basin wrench for use in tightening or loosening nuts in awkward positions, particularly those underneath basins or baths. The teeth on the jaws will grip uneven shapes as well as pipes, hexagons, squares etc. The swivelling head allows access where fixed spanners will not operate. Round cross section steel handle with removable tommy bar. Size: 15 and 22mm (1 2 and 3 4 in).