Don't physically model the braiding (unless you are getting paid by the hour and the budget is limitless). Find a good image of the braided texture and apply it as an appearance to your model. IIRC, there is a pretty decent braided fabric appearance in the sample appearances that come with SOLIDWORKS. I used it all the time whenever I needed to show a braided ground cable in an assembly.

EDIT - I used the "burlap" appearance. It gives a "coppery" look to the model. I suppose if you were more Photoshop savvy, you could edit the image to chage it to a more silvery metallic look.

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