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Wiha Tools

Wiha Tools 20008 open-end wrench 4-1/8" steel

SKU CH-E39D-F79EF

Alloy-steel open-end wrench with high-visibility coating, insulated handle and 10-degree offset for 8 mm fasteners

  • TypeStrap Wrenches
  • MaterialHAWA
  • Open-end design reaches tight fasteners easily
  • 10-degree offset clears obstructions smoothly
  • Insulated handle protects against electrical shock
  • High-visibility coating improves tool identification fast
  • One-piece alloy steel ensures lasting strength

8 mm open-end wrench

This 8 mm open-end wrench is a single-ended, metric hand tool made from alloy steel with a high-visibility coating. The head is rounded and the handle is insulated, giving a secure grip during general tightening tasks. It measures 4 1/8 inches overall and has a 10 degree offset for access in tight spots. The one-piece construction keeps the tool rigid under load.

Installation and common issues

No installation is required; the wrench is ready to use straight from the package. The insulated handle reduces the risk of electrical contact when working near live circuits. The high-visibility coating helps locate the tool quickly in a busy toolbox. The rounded head can slip if the fastener is heavily corroded or rounded off, so apply steady pressure and ensure full engagement before turning.

Who this suits and who should look elsewhere

This wrench suits technicians and DIY users who need a single 8 mm metric spanner with insulated grip for occasional electrical or automotive work. Buyers who need a full set of metric sizes or a double-ended design for faster fastener changes will not find that here. The tool is restricted from sale in certain states due to California Proposition 65 chemical warnings, so purchasers in those locations should verify compliance before ordering.

Highlights

  • Open-end design reaches tight fasteners easily
  • 10-degree offset clears obstructions smoothly
  • Insulated handle protects against electrical shock
  • High-visibility coating improves tool identification fast
  • One-piece alloy steel ensures lasting strength

Specifications

BrandWiha Tools
TypeStrap Wrenches
MaterialHAWA

Questions about this item

How can I verify the 10-degree offset is correct after I start using the wrench?

Check that the single open end engages an 8 mm fastener cleanly at the stated 10-degree angle without rounding the corners.

What comes in the box and do I need any extra items to use it?

The box contains the single-end open wrench only; no additional parts are required for normal hand-tightening tasks.

Which version should I choose if I need the insulated 8 mm metric size?

Select the 20008 model — it is the insulated, single-end, metric 8 mm wrench with the high-visibility coating.

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