90-tooth ratcheting boend delivers a 4° swing arc to turn a fastener in tight spaces. Off-corner loading design on boend provides better grip and reduces fastener rounding. Dual-direction off-corner loading on open-end reduces fastener rounding. 12-point ratcheting box-end for use on 6 or 12-point fasteners. Longer, wider beam for improved reach, leverage, and comfort. Large color-coded markings for easy size ID. Bright, full polish chrome finish easily wipes clean and resists corrosion. Exceeds ASME torque performance requirements.