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Wiha open-end wrench 9/16 inch alloy steel high-visibility coating insulated single end rounded one piece

Wiha Tools

Wiha Tools 20138 Open End Wrench SAE 9/16 in

SKU CH-B3EA-Q46HC

Open end wrench with 9/16 inch head, alloy steel construction and high visibility coating

  • MaterialHAWA
  • SAE 9/16 in head fits common fasteners
  • 10 degree offset improves access in tight spaces
  • Insulated construction supports electrical safety
  • High-visibility coating aids quick identification
  • One-piece alloy steel build resists wear

SAE 9/16 in Open End Wrench

This Wiha Tools open end wrench fits SAE 9/16 inch fasteners and is built from alloy steel with a high visibility coating. The single ended rounded head features a 10 degree offset for access in tight spaces. It measures 5 3/4 inches overall and is sold as a new condition tool.

Thermals Noise and Power Draw

As a hand operated tool this wrench produces no noise and draws no power during use. It generates no measurable heat beyond normal hand contact. The insulated design helps protect the user from electrical hazards up to the rated limit.

Upgrade Path and Value

This wrench replaces worn or missing SAE 9/16 inch open end wrenches in a professional or home tool set. The one piece alloy steel construction and insulated handle make the upgrade worthwhile when durability and electrical safety are required. It is not suited for metric fasteners or applications needing a box end or ratcheting mechanism.

Highlights

  • SAE 9/16 in head fits common fasteners
  • 10 degree offset improves access in tight spaces
  • Insulated construction supports electrical safety
  • High-visibility coating aids quick identification
  • One-piece alloy steel build resists wear

Specifications

BrandWIHA
MaterialHAWA

Questions about this item

How do I fit the 9/16 in head onto a fastener without rounding it?

Engage the open end fully on the flats, keep the 10 degree offset aligned, and pull rather than push to avoid slipping.

What upkeep does the alloy steel body with high visibility coating require?

Wipe clean after each use, inspect the coating for chips, and apply a light oil film to prevent surface corrosion.

At what point does the insulated single end design limit continuous torque?

The insulation layer caps heat dissipation, so sustained high torque will soften the grip before the steel yields.

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