Two ball screws for my x axis and two motors, do i need two drivers?

[Peter.]

I think I'm going to buy this set up as it has two extra drivers (spare or extra axis if needed)

http://www.ebay.co.uk/itm/6Axis-CNC-...#ht_3337wt_905

but still unsure if it's the right think to buy

James

Misleading advert though. THe description seems honest enough but they have put pictures of stepper motors in as if they are included, when the auction is for just the electronics.