B.S.A. Tools

B.S.A. as an engineering company made every thing from guns, bicycles, cars to tools and components for other manufactures. They produced tools to accompany their machinery, guns and vehicles as well as the general market including spanners, drill bits, screwdrivers and specialist tools for the likes of Rolls Royce.

  The tables below of B.S.A. spanner number have been confirmed by seeing actual spanners with the number and sizes cast into them.

So far the only duplicated number which have 2 sizes I have found are numbers 13, 29 and 30. This maybe due to multiple production runs but I have nothing to confirm this.