Extra long double box GearWrenches with twelve point “Surface Drive” box ends virtually eliminating the rounding of fasteners. Up to 40% longer to access hard to reach fasteners. Ratcheting box end needs as little as 5° to move a fastener compared to 30° for standard box wrenches. Also available in a nine piece set that is packaged in a sturdy plastic tray. 7/16" 9.882"