Wiha 21050 Insulated Offset Box End Wrench 9/16 in

Product Description

The WIHA 21050 is a single-end, 6-point offset box end wrench rated for insulated electrical work. The head is offset at 15 degrees to provide clearance when working in tight or recessed fastener locations. Sized at 9/16 inch, the wrench measures 194 mm overall length and is built from chromium-vanadium steel for strength and durability. The insulated construction meets multiple safety standards including CSA, EN/IEC 60900, ASTM F1505, and NFPA-70E, making it appropriate for energized electrical service work where shock protection is required. It is suited for electricians and maintenance technicians working in environments where contact with live conductors is a risk.

This wrench is intended for use in electrical trade applications where insulated tooling is mandated by code or jobsite safety policy. The 15-degree head offset provides mechanical advantage and clearance in panel boxes, switchgear, motor control centers, and other enclosures where a straight wrench cannot seat properly. The 6-point box end design reduces the chance of fastener rounding compared to open-end or 12-point configurations, which is important when working on older or torqued hardware.

Key Features

• Insulated construction meets CSA, EN/IEC 60900, ASTM F1505, and NFPA-70E standards for energized work
• 15-degree head offset angle for clearance in recessed or tight fastener locations
• 6-point box end reduces fastener rounding during high-torque application
• 9/16 inch drive size for common electrical and mechanical fasteners
• Chromium-vanadium steel construction for long service life
• 194 mm overall length provides controlled leverage in confined spaces

Compatibility

Designed as an OEM-style insulated box end wrench for use by electricians and maintenance technicians on 9/16 inch fasteners in applications requiring compliance with NFPA-70E or EN/IEC 60900 insulated tool standards.

Installation Notes

This tool is intended for use by qualified electricians performing work on or near energized electrical equipment in compliance with applicable electrical codes including NFPA-70E. Always verify the insulation is free of cuts, cracks, or damage before use on energized systems. De-energize and lock out equipment whenever possible before applying any wrench to electrical enclosure hardware. Do not use this wrench to apply impact force or as a pry bar, as damage to the insulation layer may compromise its rated protection.