Nah, would probably yank the hammer away and beat you with it.
Looks like one of those fruit spiders. Big ****er too. Or a really wierd wolf spider, but I doubt it.
Anyway, personally, the ones that get me are the big fat ****ers- sure, one that's two inches across is one thing, but when that's all spider and not leg it gets really freaky. Anyway, personally I leave 'em alone (out where I live, the insects are nasty and numerous enough that you learn to ****in' respect anything that kills them by the dozen so that you don't have to) unless they get too frisky, and then... well, never met one yet could survive a 2x4 (thrown, possibly, though my aim's bad) or a butane torch.