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Red and yellow insulated 11 mm 12-point box end wrench

Wiha Tools

Wiha Tools 21011 11 mm 12-point box end wrench tool storage

SKU CH-SSFV-ZDY8V

Insulated 11 mm 12-point box end wrench rated to 1000 volts with cushioned grip

  • Insulated for live work up to 1000 V per EN/IEC 60900
  • 12-point box end grips 11 mm fasteners securely
  • Alloy steel construction withstands demanding applications
  • Cushion grip handle reduces hand fatigue during use
  • Red and yellow colour coding speeds identification in low light

Product identity

The Wiha Tools 21011 is an 11 mm 12-point box end wrench built for professionals who work on live electrical systems up to 1000 volts. It meets EN/IEC 60900 and ISO 3110 insulation standards and carries California Proposition 65 warnings for cancer and reproductive harm. The alloy-steel construction and cushioned grip target electricians and maintenance technicians needing certified insulated hand tools.

Decisive specification

The single specification that decides fit is the 11 mm 12-point box end opening, which only engages fasteners of that exact size and point count. The wrench is rated for 1000 V AC work and complies with EN/IEC 60900 plus ISO 3110, so it suits technicians who must meet those insulation standards. Buyers needing a different fastener size, an open-end profile, or a non-insulated wrench cannot use this model.

Installation and common issues

Using the wrench requires no assembly; the user simply places the 12-point box end onto the matching fastener and applies torque through the 7 in. cushioned handle. The red and yellow colour-coded grips aid quick identification in low light. Common issues include selecting the wrong metric size for the bolt, overlooking the Proposition 65 chemical warnings, or assuming the tool fits imperial fasteners when it is strictly metric.

Highlights

  • Insulated for live work up to 1000 V per EN/IEC 60900
  • 12-point box end grips 11 mm fasteners securely
  • Alloy steel construction withstands demanding applications
  • Cushion grip handle reduces hand fatigue during use
  • Red and yellow colour coding speeds identification in low light

Specifications

BrandWIHA

Questions about this item

What does the 1000 V insulation rating mean when I am working on live circuits?

The wrench meets EN/IEC 60900 and ISO 3110, so it is tested for safe use up to 1000 volts on energised equipment.

Which standards govern the 12-point box end and insulation?

The 12-point head follows ISO 3110 dimensions, while the insulation complies with EN/IEC 60900 for 1000 V work.

What clearance does the 7 in overall length and 11 mm head need in a tool roll or tray?

At 7 inches long with an 11 mm box end, it fits standard metric wrench slots and most padded tool rolls.

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