I use a pair of Ancor stripper/crimpers from Ancor wiring, part #701009
http://www.ancorproducts.com/Products/Home.html
With these I can cut s/s bolts/screws to length with miniumal effort...thread the screw into the appropriate aperture to the length desired, cut, then back out..perfect thread every time.
Great for small bolts and screws the best I've ever used better than Mac or Snap-on or any other brand IMO.