The Microtech Troodon (say it TROH-o-don) is named for a dinosaur whose name translates to "wounding tooth," which tells you the design brief. Introduced in 2006, it is the knife the Combat Troodon was scaled up from, which makes the standard Troodon the original recipe: a dual-action OTF carrying just over three inches of blade in a package around 7.6 inches and 3 ounces.
The ergonomically textured handle gives it one of the surest grips of any compact OTF, and like everything in the Microtech lineup, it is machined in the USA to tolerances that make the action feel telepathic.
The Troodon runs about 75 percent the size of the Combat Troodon, and the two split the mission cleanly. The Combat is the 9.5-inch duty knife with the 4-inch blade and the presence to match; the Troodon takes the same silhouette, the same aggressive grip texture, and the same double-edge attitude, then shrinks it to something that rides in slacks without announcing itself. The smaller frame also fires with a slightly lighter thumb, which many carriers end up preferring.
This is the great in-house debate at this size. The two knives are nearly identical in footprint, with the UTX-85 actually running a touch longer, but they feel nothing alike: the UTX-85 is the slim, discreet Ultratech formula, while the Troodon is broader through the handle and the blade, with a beefier glass breaker at the base. If you want the knife to disappear, take the 85; if you want more blade presence and more to hold onto at the same weight class, the Troodon is the pick.
The double-edge spear point is the Troodon's calling card and what usually fills this grid, with single edge and tanto versions rotating through the model's history alongside anodized handle colors that run well past tactical black into purples and turquoise. Blade steel follows Microtech's premium program by production run, which you can size up in our comparison of every major knife steel. Among compact OTF knives, the Troodon remains the one that feels most like a big knife that shrank, rather than a small knife trying hard.