The Proto B327131 combination wrench features a 12-point box end with the TorquePlus™ system for superior torque transfer, fine indexing for improved speed and access, and fits 4, 6, and 12-point fasteners. The satin finish provides corrosion resistance and a slip-resistant grip for demanding work environments.
The open end incorporates Proto's Anti-Slip Design (ASD) to reduce fastener rounding, while the tether-ready design supports tool drop-prevention programs in safety-critical applications. Ideal for industrial, MRO, and construction use.