tom h

Jerry, I doubt that this is any sort of factory modification, but if for use on the luger itself (as opposed to using the tool as a can opener) the size of the added slot may match the width of the trigger lever in the side plate, and assist in its removal. I once had a loading tool that had the tip of the blade ground down to two points, which worked well to adjust the fine tune sight screws on a LPO8. Tom h