Klein Tools 70591 Folding Hex Key Set SAE
- Measurement Standard: SAE (Inch)
- Head Style: Box End, Fixed Square
- End Style: Hang Hole
- Item Length: 5.5 inches
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact, trade-brand wrench worth considering for tight-space work, though confirm drive size fits your fasteners before buying.
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ASIN: B0002RI8RSModel: 70591Category: Wrenches
Overview
Klein Tools built the 70591 as a compact 5.5 inch wrench that weighs just 0.49 pounds, sized for close-quarters work rather than heavy leverage.
At 5.5 inches, this sits on the smaller end for wrenches, sized for maneuvering in tight spots rather than heavy leverage work. Klein Tools built its reputation on tools for electricians and tradespeople, though this listing does not specify drive size or jaw opening.
- 5.5 inch length
- 0.49 pound weight
- Klein Tools brand
- Compact, maneuverable size
Who it's for
Fits users who need a compact wrench for tight spaces such as electrical panels or cramped equipment. Not the choice for jobs needing significant leverage on large fasteners.
Pros and cons
- Compact 5.5 inch size for tight spaces
- Light at 0.49 pounds
- From a brand established in trade tools
- Shorter length means less leverage than a full-size wrench
- Drive size and jaw opening not specified
Performance notes
At 5.5 inches and 0.49 pounds, the 70591 is built for maneuverability in confined spaces rather than maximum leverage. That size makes it easier to work with in tight panels or enclosures where a longer wrench would not fit.
Specifications
| Brand | Klein |
|---|---|
| Model | 70591 |
| Dimensions & fit | |
| Item Length | 5.5 incheslower than 68% of 371 wrenches |
| Wrench Length Style | Standard |
| Item Weight | 0.49 poundslower than 76% of 356 wrenches |
| Construction & materials | |
| Material Type | Blend |
| Color | Silver |
| Finish Types | Brushed |
| Included components | |
| Package Quantity | 1 |
| Unit Count | 1 |
| Included Components | 5/64'' (2 Mm), 3/32'' (2 Mm), 7/64'' (3 Mm), 1/8'' (3 Mm), 9/64'' (4 Mm), 5/32'' (4 Mm), 3/16'' (5 Mm), 7/32'' (6 Mm) And 1/4'' (6 Mm) |
| Warranty & support | |
| Manufacturer Warranty Description | 1 year manufacturer |
| Other details | |
| Measurement Standard | SAE (Inch) |
| Head Style | Box End, Fixed Square |
| End Style | Hang Hole |
| Operation Mode | Mechanical |
| Is Racheting | No |
| Is Non Sparking | No |
| Item Type Name | Klein Tools 70591 Folding Hex Key Set, 9-Key, SAE Sizes |
Closest rivals on specs
Klein Tools 32933KIT Impact-Rated Socket Set- Item Length 5.5 vs 5 inches (+10%)
Frequently asked questions
How long is the Klein 70591 wrench?
5.5 inches.
How much does it weigh?
0.49 pounds.
Is the 70591 good for tight spaces?
Its compact 5.5 inch size makes it easier to maneuver in confined areas than a longer wrench.