Wiha 21054 Insulated Offset Box End Wrench 11/16 in

Product Description

The WIHA 21054 is a single-end, insulated offset box end wrench sized at 11/16 inch with a 6-point head profile. Built from chromium-vanadium steel, it delivers the torque and durability required for fastener work in tight or awkward spaces. The 15-degree head offset angle provides clearance over obstructions that flat wrenches cannot clear. At 203 mm overall length, the tool gives adequate leverage without becoming unwieldy. The insulated construction meets CSA, EN/IEC 60900, ASTM F1505, and NFPA-70E standards, making it rated for live electrical work where shock hazard is present. Electricians and other trades working on energized equipment or switchgear will find this wrench suited to the task.

This wrench is intended for use in applications where both mechanical fastening and electrical safety requirements must be met simultaneously. The insulated body and rated standards make it appropriate for commercial and industrial electrical installations, maintenance on energized panels, and service work governed by NFPA-70E arc flash and shock protection guidelines. It is a hand tool used by licensed electricians and qualified trades personnel performing work on or near energized conductors and equipment.

Key Features

• Insulated construction rated to CSA, EN/IEC 60900, ASTM F1505, and NFPA-70E for live electrical work
• 15-degree head offset angle provides clearance over obstructions and recessed fasteners
• 6-point box end profile for maximum contact on hex fasteners, reducing rounding risk
• Chromium-vanadium steel construction for strength and corrosion resistance
• Single-end design at 11/16 inch to target a specific fastener size
• 203 mm overall length balances leverage and access in confined areas

Compatibility

Designed for use with 11/16-inch hex fasteners in electrical, industrial, and mechanical applications where insulated tooling is required by code or safety protocol.

Installation Notes

This tool is intended for use by qualified electricians and trained trades personnel only. Before working on or near energized equipment, follow all applicable NFPA-70E lockout/tagout and personal protective equipment requirements. Inspect the insulation for cracks, cuts, or damage before each use — a compromised insulating layer reduces the shock protection rating. Do not use this wrench as a striking tool or apply extension handles, as doing so may damage the insulation and void the safety rating.