Ok, I've a nice but well used Fiskars hand axe that needs some work. It's got some notches in the blade from hitting woodscrews that I need to remove. So far my standard whetstone isn't up to it, suspect I need something more aggressive. Any tips on getting a decent edge? I'm ok with getting it sharp afterwards, I think. Does a standard 22 degree edge work ok or should I aim for something else on a hand axe?