Proto Super Heavy-Duty Offset Slugging Wrench 1-5/16" - 12 Point JUSN321-SBD

Proto's ProtoBlack striking wrench features a non-reflective finish, making it ideal for applications where non-plated tools are required. The 12-point box end allows for fine indexing, which improves speed and access, and is specifically designed for heavy use in close quarters where a hammer or sledge is required to loosen frozen nuts or set large fasteners. Its high-strength rectangular design withstands heavy sledging and effectively transmits power to the fastener while resisting springing, and the straighter handle design ensures the nut turns easier. Furthermore, the specialized box opening is designed to remain securely in place on the fastener when the wrench is struck, and the heavy box walls provide greater transmission of torque to the fastener for maximum leverage.
Key Features
- Finish: Non-reflective ProtoBlack™ finish for use where non-plated products are required.
- Box End: 12-point box end allows for fine indexing, helping improve speed and access.
- Intended Use: Designed for heavy use in close quarters where a hammer or sledge is required to loosen frozen nuts or set large fasteners.
- Durability: High-strength rectangular design withstands heavy sledging and resists springing; transmits power more effectively to the fastener.
- Torque Transfer: Heavy box walls provide greater transmission of torque to the fastener.
- Design: Straighter handle design allows the nut to turn easier.
- Security: The box opening is designed to remain securely in place on the fastener when the wrench is struck.