Cold Steel has tantos in many of its folder models, in several sizes in fact. They all have the Tri-Ad lock, which is IMO the strongest lock on the market today. They are inexpensive and very well made, in Taiwan. They all have AUS8A steel which is nothing special but has never failed me or let me down. I highly recommend a Recon 1, or even a Voyager, which can be had for as little as $45 for a 4" stonewashed blade.