company uses the best quality hardened steel to manufacture the 18x19 mm Tubular Box Spanner. The company forges these Tubular Box Spanners out of steel tubing, which later undergoes tempering to improve the loading capacity. The Box Spanners are handy while working in cramped spaces or dealing with fasteners in deep recesses. The spanner has hexagonal ends which slide over the hexagonal fasteners of respective sizes (in this case, 18mm on one end and 19mm on the other). The Tommy bar is a solid bar of steel used to rotate these spanners by sliding into the holes drilled in the tubular box spanner.
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