Precision Ratcheting End: Features a 72-tooth precision-machined internal gear that provides a tight 5-degree swing arc. Knuckle Clearance: Designed with a 12-degree offset on the ratcheting box end to safely clear obstacles and flat surfaces. Radius Corner Design: Engages the flat sides of fasteners rather than the sharp corners. This increases torque by up to 15% to 20% and prevents bolt rounding. Debris Protection: Built with an enclosed ratcheting mechanism to keep dirt, grease, and debris out, extending the life of the tool.