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Gray Tools 166B-I insulated combination wrench with orange and yellow layers

Gray Tools

Gray Tools 166B-I 3/4" 12 Point 1000V Insulated Wrench

SKU CH-628M-MSSEW

A 3/4 inch 12-point combination wrench insulated to 1000 V with dual-layer orange and yellow coating tested to ASTM F1505 standards

  • 1000 V insulated protection for live electrical work
  • 12-point drive engages fasteners from multiple angles
  • Dual-layer orange and yellow insulation reveals wear instantly
  • Tested to ASTM F1505 for verified dielectric strength
  • 3/4 inch hex size fits common heavy-duty fasteners

Insulated Wrench 1000 V 12 Point

This insulated combination wrench is built for electrical maintenance where live circuits up to 1000 V may be present. The 12-point drive engages fasteners at multiple angles for efficient turning in confined panels.

Check Fastener Size And Voltage Rating

Verify that the fastener requires a 3/4 inch hex size before ordering. Confirm the working voltage of the installation does not exceed the 1000 V rating and that ASTM F1505 compliance meets your site safety requirements.

Dual Layer Insulation Visual Indicator

An orange outer insulation layer covers a yellow inner layer that reveals damage if the outer layer is compromised. Each wrench is individually tested to ASTM F1505 standards to ensure the insulation integrity is maintained during normal use.

Highlights

  • 1000 V insulated protection for live electrical work
  • 12-point drive engages fasteners from multiple angles
  • Dual-layer orange and yellow insulation reveals wear instantly
  • Tested to ASTM F1505 for verified dielectric strength
  • 3/4 inch hex size fits common heavy-duty fasteners

Specifications

BrandGRAY TOOLS

Questions about this item

Does the Gray Tools 166B-I wrench ship with any accessories or does the 12-point insulated head arrive alone?

The wrench is supplied as a single 3/4" 12-point insulated combination wrench with no additional accessories included in the package.

The listing shows only the 3/4" size; are other hex sizes or drive types available for this insulated series?

This specific model is the 3/4" 12-point version; other sizes or drive configurations would be separate part numbers not covered by this listing.

How does the 1000 V rating translate to daily use on live electrical panels?

Each wrench is individually tested to ASTM F1505 and features dual orange-over-yellow insulation that acts as a visual wear indicator while protecting the user up to 1000 V.

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