Lightweight folding carrying tool with resin frame The most complete MTC series. From CO2 cartridge cylinder adapters to rotor corrector and chain tools, this multi-tool can handle most of your mechanical problems on the go. Hex Wrench (2.5/3/4/5/6/8 mm) / Torque Type Wrench (T25/T30) / ± Combo Driver / CO2 Cartridge Cylinder Adapter / Chain Tool (5-12 speed) / Rotor Corrector / Bottle Opener / Keychain Ring