At least in the US, one SKU will often get you a drill/driver, impact driver and some other tool like a ratchet or die grinder, so being
sold together means nothing here other than a way to package tools together.
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I don't believe those packages were sold in the US, and the CT manual indicates that in Europe, the specifications seem to say it may be a US voltage thing, as you
can connect the two unless you're on 110V in the UK: