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Tubular Box Spanner is fabricated using superior quality metal alloy with two profiled ends and two laser drilled holes as well for fixing tommy bar. It is used by covering bolt head with help of mating profile where it automatically gets clamped along flat faces and assists in easy turning. This spanner is provided with hexagonal profile at one end for being one of the most common. Tubular Box Spanner has heat treated structure with zinc coated surface finish for high durability.