If you've never done it before......... pay to have it done. And make sure to leave the tails longer than shorter. 90 percent of vets cut to much off of shorthairs. I've cut tails off of springers,brittianys,gsps,gwps. 17 litters worth, I use a soldering iron with a rope cutting attachment, pull hair towards the butt and zip through it after knife is red hot. Dew claws are surgical scissors and baking flour as a clotting agent to stop bleeding. I do surgery on them at day one after they are all whelped,dry and been fed a good dose of mommas clostrom milk. They squirm alot less.