Wiha 21056 Insulated Offset Box End Wrench 3/4 in

Product Description

The WIHA 21056 is a single-end insulated offset box end wrench designed for electricians and trade professionals working in energized or potentially energized environments. Built from chromium-vanadium steel, it features a 12-point box end at a 15-degree head offset angle that improves access in tight fastener clearances. The overall length is 219 mm (approximately 8.6 inches). Insulation on this wrench meets IEC 60900, ASTM F1505, NFPA-70E, and CSA standards, making it a code-compliant choice for live electrical work up to rated voltage levels.

This wrench is suited for residential, commercial, and industrial electrical applications where working around energized components is required. The 15-degree offset head gives the user better knuckle clearance and improved torque angle on fasteners in panel boxes, junction enclosures, switchgear, and similar electrical equipment. Its single-end design keeps the tool compact and the 3/4 inch drive size covers common fastener sizes found in electrical and light mechanical work.

Key Features

• Insulated construction meets CSA, EN/IEC 60900, ASTM F1505, and NFPA-70E standards
• 12-point box end for increased contact points and reduced fastener rounding
• 15-degree head offset angle for improved clearance in confined spaces
• Chromium-vanadium steel construction for strength and durability
• Single-end design with 219 mm overall length for a compact profile
• Non-ratcheting box end for reliable grip in energized work environments

Compatibility

Designed as an insulated hand tool for use on 3/4 inch fasteners in electrical panels, switchgear, and enclosures where NFPA-70E arc flash and shock hazard compliance is required.

Installation Notes

Installation and use should be performed by a licensed electrician familiar with NFPA-70E safe work practices. Always verify the insulation rating is appropriate for the voltage level before working on or near energized parts. Inspect the insulated coating for cracks, cuts, or damage before each use — do not use a wrench with compromised insulation on energized equipment. Refer to the applicable NEC and NFPA-70E guidelines for personal protective equipment requirements when working in energized panels or switchgear.