Victorinox Swiss Army SAK Part: Medium Scissor Spring (Typically Fits 74mm and 84mm Knives) 6 Pack A.6557-X2 (Old Sku 38409)

After Homeland Security, snapped scissors springs are my biggest cause of lost penknife function. These replacements work great against one of these threats. I actually found that using two needle nose pliers made it a lot easier to install these, after removing the old spring. The trick is to get the spring aligned squarely next to the hole so that it just slides in with a little push from the second pliers. If it's sitting at an angle it won't slide in. The photo shows the new spring being held in place so the curled part of the spring is aligned with the hole at the base of the scissors. Once you get this far, you come in with the second pliers (or perhaps finger - I didn't try that) to push it home. How gratifying to be able to repair and extend the lifetime of a gadget rather than dispose and replace!