Whether you need a bolt tightened or a nut unfastened, they're there to make the impossible happen. Spanner tools are as necessary as hammers. They torque the nuts and bolts that hold metal ...

Open-ended spanners will fit a nut or bolt and provide a drive on ... this can lead to rounding of either the fastener or the teeth in the spanner on tight fittings. Typically, a ring or open ...