EIGHT TOOL's EA-TQX series is a TORX 1/4" Driver Bit for EIGHT TOOL's TQAXD series, FACTORY-SET TORQUE SCREWDRIVE SET. The bit is made of EIGHT TOOL's high quality material and plated with origial EL/ARMOUR plating to ensure outstanding durability. The bit is designed to be used along with EIGHT TOOL's TQA FACTORY-SET TORQUE ADAPTOR to prevent from overtighting. The bit and adaptor are color coded to match TORX size and suitable torque, making it easy to pick right combination. About EIGHT TOOL: EIGHT TOOL has specialized in hex key wrench manufacturing in Japan for over 60 years and has provided the world's highest-class quality tools for all industries. Made of originally-developed special alloy steel SNCM+V that incorporates the torsional strength and abrasion resistance, EIGHT TOOL's strict quality standard and 2,000+ product lines have earned recognition as a trusted brand from industry professionals all over the world. EIGHT TOOL's Excellent series features original Hexavalent-Chrome(Chrome 6)-free EL/ARMOUR plating that provides superior abrasion resistance and rust resistance. Along with other various features including Taper Head (enhanced ball end) machining and Bolt Catch function etc., EIGHT TOOL's products service our customers with outstanding performance. Craftsmanship is required more than ever to support innovation. EIGHT TOOL strives to develop and manufacture reliable hand tools that could assist in improving our world, one screw at a time. *TORX and TORX plus are registered trademark of Acument Intellectual Properties, LLC. EIGHT TOOL is an official licensee of Acument Intellectual Properties, LLC.