Features and Benefits: XL GearBoxT Design Has a Longer Beam to Increase Leverage and Torque; Non-Ratcheting End for Breaking Loose Stubborn Fasteners; 0? Offset and Slim Profile to Access the Tightest Spaces and Recessed Fasteners; Surface Driver on Box End Provides Off-Corner Loading for Better Grip and Reduced Fastener Rounding; Bright, Full Polish Chrome Finish for Rust Prevention and Easy Cleaning, Oil and Dirt Wipes Right Off; Zero degree offset for superior access even for recessed fasteners Up to 40% longer to access those hard to reach fasteners Ratcheting box end for maximum productivity Improved box end reduces fastener rounding and adds strength Precision broached for a perfect fit.