The Microtech UTX-85 is the Ultratech scaled to 85 percent, and the math works out to one of the most pocketable serious OTF knives you can buy: 7.65 inches overall, a 3.10-inch blade, and just 3.1 ounces of anodized 6061-T6 aluminum. The double-action thumb slide fires and retracts the blade with the same authority as its big brother, and the contoured chassis gives a smaller frame the same secure grip as the full-size knife.
That compact footprint has made the UTX-85 a favorite for smaller hands and for anyone who wants Ultratech performance with less knife in the pocket. Like everything else in the Microtech catalog, it is precision machined in the USA.
Current production is Gen IV, identified by the Roman numeral marked on the blade, with a handful of Gen III double-edge models still on the shelf. The generation brings Microtech's Dual Fuel drivetrain for smoother, more consistent firing, plus the Crud Kutter switch, which rides on a milled platform that breaks up pocket lint before it can gum the action. Torx hardware, a stainless glass breaker, and a redesigned ambidextrous clip round it out. It adds up to a small OTF that deploys with the crack and confidence of the full-size knives, then drops back into the pocket and disappears.
Blades run Bohler M390MK, a version of M390 that Bohler tuned exclusively for Microtech, which buys serious edge retention and corrosion resistance in a knife this size. You can see exactly where that steel lands in our comparison of every major knife steel. Configurations cover single edge, double-edge dagger, and tanto profiles in plain, partially serrated, and fully serrated edges, with the Spartan grind and Signature Series runs like the 250th Anniversary flag editions rotating through alongside standard black, OD green, tan, and blue chassis colors.
The sizing ladder is simple. The full-size Ultratech carries a blade of roughly 3.5 inches for maximum reach and presence, the UTX-85 gives up just under half an inch to ride lighter and lower in the pocket, and the UTX-70 shrinks the same design to 70 percent for the true minimalists. The Troodon covers the same size class with its own chassis design. For a lot of carriers, the 85 is the Goldilocks answer: enough blade for real work, little enough knife that it goes everywhere. Among out-the-front knives, it might be the easiest recommendation in the class.