Wiha Tools
Wiha Tools 20131 Open End Wrench SAE 1/4 in
An insulated, single-end open-end wrench with a high-visibility coating for 1/4 inch SAE fasteners
- Precise fit for 1/4 in SAE fasteners
- 10 degree offset clears tight spaces
- Alloy steel construction resists wear
- High-visibility coating speeds identification
- Insulated single-end design adds safety
Single-End 1/4 in Open-End Wrench
This Wiha 20131 open-end wrench is a single-end SAE tool sized at 1/4 in for technicians who need a precise fit on small fasteners. The alloy-steel body carries a high-visibility coating and insulated handle for identification and electrical safety. It suits professional maintenance and assembly tasks where a single fixed size is preferred over an adjustable alternative.
Insulated High-Visibility Alloy Steel
The decisive specification is the insulated, high-visibility alloy-steel construction that meets safety and visibility requirements on live or cluttered work sites. The 10-degree head angle and rounded single-end profile allow engagement in restricted clearance without damaging fastener corners. Buyers who need a non-insulated or double-ended wrench should select a different model.
One-Piece Design Requires Correct Sizing
Installation is immediate because the one-piece wrench has no moving parts or adjustment mechanism. The only common error is selecting the wrong SAE size, as the 1/4 in head cannot be adapted to other dimensions. Verify the fastener size before purchase to avoid mismatched fit.
Highlights
- Precise fit for 1/4 in SAE fasteners
- 10 degree offset clears tight spaces
- Alloy steel construction resists wear
- High-visibility coating speeds identification
- Insulated single-end design adds safety
Specifications
| Brand | WIHA |
|---|
Questions about this item
What does the 10-degree head angle do on the 20131 wrench?
The 10-degree offset angles the open end away from the handle, giving clearance for fingers or nearby obstructions when turning a fastener.
How does the SAE sizing and single-end design affect use?
The wrench fits 1/4-inch SAE fasteners only, and the single-end layout means one fixed head without a second size on the opposite side.
What clearance is needed to fit the 20131 in a tool holder?
The overall length is 3 3/8 inches, so the storage slot or organiser pocket must accommodate at least that length.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



