I am pretty sure the legal blade limit in NV is 3 inches if you carry it concealed. When I am in NV I only carry a Kershaw 2" folder to open packages, cut fruit etc,, as I no longer need to rely on a knife for protection since I got my NV cc permit.
I have always loved knives and have several expensive ones, 3 Busses, a Camillus CudaMaxx (limited production run of only 1000.) Bought that knife when it first was released for $207 on EBay. Today, if you can find one for sale, asking price is $800 and up. Plus I sent that knife to Darryl Ralph, the designer who allowed Camillus to make a limited run to replace the Teflon bearings with bronze like his knives, smooth out the action and firm up the lock. In Hawaii I carry two fixed blades for SD. A 5" & 3".
Nevada State laws no longer have length limits for knife blades you can carry. The whole of Clark County, Nevada, plus the townships or cities of Henderson, Las Vegas, and North Las Vegas all forbid concealed carry of knives with blades 3” long or longer. Reno is even stricter, banning blades 2” long or longer, and some municipalities probably still outlaw switchblade and belt-buckle knife ownership.
Before changes in 2015, a pocketknife was all you could legally carry concealed without a permit. NRS § 202.350, now heavily amended as of July 1st, 2015, forbids concealed carry of machetes. It is now legal to carry switchblades, belt buckle knives (which are concealed permanently by design), daggers, dirks, and other legal knives concealed. Swords presumably count as “machetes” also, and sword-canes likely fall into the same category. Nevada residents can request a concealed carry permit for knives otherwise illegal to carry hidden from their county sheriff, in writing.