In reply to lachy773:
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> Say you want to do some mountaineering (say in the alps) on a large mountain but also has some steep ice climbing. Would you need to carry a a walking ice axe and a pair of more agressive climbing axes?
No, just the tech axes, you can arrest with them too. You'd spend most time on the ice, so get something suitable for that.
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> so axes such as the dmm fly are not as good on the steep stuff but could be used as a walking axe too?
Yes, but flys are good for the majority's steep stuff too.
> and what about the black diamond reactor style axe... they wouldnt be suitable to double up as a walking axe?
They'll be as long as the fly's but you wouldn't use them as a walking axe.
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If your question is what axes to buy that are good on the mountain and on steep ground, then look at quarks and vipers, they seem to compromise quite well, erring on the tech side. If it is more alpiney, then something like the Petzl Sumtec might be worth a look, there is an axe with a horn that tucks away into the shaft but I don't know what it is.