This is the Microtech Knives Tri Wing Tool Bit for Microtech Makora II, Scarab, Ultratech, and Troodon knives 2015 and earlier. This will not fit the Combat Troodon. These will not fit the flush or flat screws, only the raised dome. This black coated steel bit has a 1/4" hex base that will fit most any screwdriver with interchangeable heads. This bit is sold only as a tool to adjust your screws. Eknives does not condone the Disassembly of your knife as it will void your warranty.