Wera L key help

[r_olson_06]

I recently purchased a Set of multicolor hex plus l keys in metric. I want a sae set in the hex plus but they mark them imperial. Is imperial same thing as sae or is it British standard? Wera will not reply to my question

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[MFolks]

My understanding, is that Imperial is the same as SAE, but British Standard was at one time "Whitworth" (kinda like between Metric & Imperial).