I would like to add a hunting knife to my collection of pocket knives. I have found one I like by Beretta, with nice engraved handles. The knife comes in several variations that differ in the choice of the shotgun-specific tool they come with, some of which puzzle me. Now, I am not a hunter and don't know much about guns... So I would really like some explanation from those ones of you who do.
Below are pictures of these knife models. The first one is equipped with a shell removing tool, for 12 and 20 gauge cal. shells, and what seems to be a large screwdriver tip (is that correct?). The second one is an older model with choke tube wrench, also for 12 and 20 gauge cal. tubes, and with what seems to be a fine screwdriver tip. This model is not available any more, and the current one to replace it has a bottle opener instead, but it still retains the long screwdriver tip. It is however still listed as a choke tube tool. Why would that be the case? And what would the long "nose" on this bottle opener be used for on a shotgun?
Many thanks to anyone who would care to enlighten me a bit.