These are the three designs I have come up for the "Spallen Wrench" project.

 

The first design features the Spanner Wrench and the Allen Wrench flush together with a metal handle and welded together. This design had the Spanner Wrench in full working capability but hinders the performance of the Allen Wrench due to its vertical design.

 

The second design features the Spanner Wrench lightweight and not thick, along with the Allen Wrench having an 90 degree extension of it's self. This is a better design as it allows the Allen Wrench to work at its' full potential. The only problem with this design is that everything is created as one part, does not allow to take parts out separately for use. 

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The third design features both wrenches as interchangeable parts through friction with a separate handle to accompany both parts. This is the best design as it allows both wrenches to work at their full potential, and not hindering the performance of its' user. This design allows for you to take parts out separately for use.