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Wiha open-end wrench one inch head high-visibility coating alloy steel single end rounded one piece insulated ten degrees overall

Wiha Tools

Wiha Tools 20147 Open End Wrench 1 in tool storage

SKU CH-BVAE-R387H

Alloy steel open-end wrench with insulated single-end head, high-visibility coating and 10-degree offset for SAE fasteners

  • High-visibility coating aids quick identification
  • Alloy-steel construction provides lasting strength
  • Insulated design protects against electrical shock
  • 10-degree offset improves access in tight spaces
  • Single-end 1 in SAE head fits large fasteners

1-Inch SAE Open-End Wrench

The Wiha Tools 20147 is a single-end open-end wrench with a 1-inch SAE head size. It is built from alloy steel with a high-visibility coating and features a rounded, one-piece design. The insulated handle provides protection during electrical work. This tool suits technicians and mechanics who need a large, insulated wrench for specific fastener sizes.

Insulated Handle and 10-Degree Offset

The insulated grip allows safer work on live circuits up to the tool's rated voltage. A 10-degree head angle helps reach fasteners in tighter spots without repositioning. The single-end design means only one size is available per wrench, so users must carry multiple wrenches for different bolt heads. The high-visibility coating aids quick identification in a busy toolbox or low-light areas.

Verify Fastener Size and Insulation Needs

Before ordering, confirm the fastener requires a 1-inch SAE open end. Check that the 8 3/8-inch overall length fits your workspace clearance. Ensure the insulation rating matches the electrical safety standards required for your application. Note that California Proposition 65 warnings apply due to chemical content.

Highlights

  • High-visibility coating aids quick identification
  • Alloy-steel construction provides lasting strength
  • Insulated design protects against electrical shock
  • 10-degree offset improves access in tight spaces
  • Single-end 1 in SAE head fits large fasteners

Specifications

BrandWIHA

Questions about this item

How can I confirm the open-end wrench is working correctly after first use?

The wrench should fit a 1 in fastener cleanly, the 10 degree offset lets it engage without rounding corners, and the high-visibility coating remains intact on the alloy-steel head.

What comes with the 20147 wrench and what must I purchase separately?

The box contains the single-end 1 in open-end wrench only; no storage case, additional sizes or insulation testers are included.

Which version of the 20147 should I choose for SAE applications?

The listed model is a single 1 in SAE head with 8 3/8 in overall length and insulated one-piece construction; no other capacities or versions are offered for this MPN.

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