Klein Tools 70550 Folding Hex Key Set SAE
- 11 SAE sizes in a folding set
- Fractional inch keys, hex head style
- Extra long keys for added reach
- Steel keys with a reinforced nylon handle
- 1 year warranty from the manufacturer
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A folding hex key set with long keys that reach into recessed fasteners. It is inch sizes only, so metric hex screws need a different set.
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ASIN: B07SR11TC4Model: 70550Category: Wrenches
Overview
A pivoting nylon handle folds the keys out like a pocketknife blade and holds them in a compact body. Each steel key swings into place to turn a hex socket screw. A hang hole at the end lets the set hang from a pegboard or hook.
Long keys help reach set screws and recessed cap screws that a short L key cannot get at. Folding the set into one handle holds all the sizes together rather than loose in a drawer. The ratcheting claim in the listing data is unclear for a folding key set, so do not count on a ratchet action.
Who it's for
A toolbox that already has a metric set can add this for inch hardware on machinery, bikes from older makes and equipment. Anyone working on metric fasteners should choose a metric set instead.
Pros and cons
- Folds into one compact handle
- Extra long keys for reach
- Reinforced nylon handle
- Hang hole for storage
- Inch sizes only
- Not for metric hex screws
- Ratcheting action unclear in listing
Performance notes
The keys pivot on the handle, so the folded length is short but the open key gives reach into a socket head screw. A longer arm gives more leverage on a tight fastener. Because the handle holds every key, finding the right size is a matter of unfolding the one that fits.
Specifications
| Brand | Klein |
|---|---|
| Model | 70550 |
| Dimensions & fit | |
| Item Length | 6.63 incheslower than 58% of 338 wrenches |
| Wrench Length Style | Extra Long |
| Item weight | 1 pound |
| Construction & materials | |
| Material Type | Reinforced Nylon |
| Color | Orange |
| Finish Types | Brushed |
| Included components | |
| Included Components | (11) Fractional Inch-Sized Keys |
| Unit Count | 1.0 Count |
| Warranty & support | |
| Manufacturer Warranty Description | 1 Year Manufacturer |
| Other details | |
| Measurement Standard | SAE (Inch) |
| Head Style | Hex |
| End Style | Hang Hole |
| Set Name | 11-Piece |
| Is Racheting | Yes |
| Operation Mode | Mechanical |
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Frequently asked questions
How long is the Klein 70550 hex key set?
The item length is 6.63 inches, and the listing describes the keys as extended length.
Is the Klein 70550 a ratcheting wrench?
The listing data flags ratcheting as yes, but the product is a folding hex key set, so it works as a folding key rather than a ratchet drive.
Can I use the Klein 70550 on metric screws?
No. The measurement standard is SAE and the keys are fractional inch sizes.
How do I hang the Klein 70550?
The end style is a hang hole, so the set can hang from a hook or pegboard.