Klein Tools 70542 Compact Fold...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$79.99
$23.79
Klein Tools 70542 Compact Folding Hex Key Set, SAE and Metric

Klein Tools 70542 Compact Folding Hex Key Set, SAE and Metric

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Model: 70542
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$79.99
$23.79
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Compact Folding Hex Key Set, SAE and Metric

  • Warnings

    • Always wear approved eye protection.
    • Do NOT extend handle length.
    • NOT insulated. Plastic-dipped or slip-on plastic handles are NOT intended for protection against electrical shock.

  • Features

    • 17 key sizes include 5/64-Inch, 3/32-Inch, 7/64-Inch, 1/8-Inch, 9/64-Inch, 5/32-Inch, 3/16-Inch, 7/32-Inch, 1/4-Inch and 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm
    • Portable, Square-Cut Ends, High-Leverage Blades, Heat Treated Alloy Steel
    • High-leverage blades open independently up to 270 degrees
    • Reinforced nylon handle has a sturdy, comfortable grip
    • Effortlessly adjust key tightness or looseness with the convenient #2 Phillips fastener
    • Hex-key ends are square-cut for a secure, full-depth fit and maximum contact with the socket to prevent slippage and stripping
    • Openings on the sides of case provide unimpeded access to outer keys
    • Blades are made of tough, heat-treated alloy steel and range from approximately 2.25-Inch to 2.5-Inch long coated to prevent rust
    • Folding hex key set is compact and pocketable for convenient carrying and storing


70542 - spec sheet

Manufacturer Resources

Product Specs

Country Of Origin:
Vietnam
End:
Flat
Handle Length:
4.6" (11.6 cm)
Key Lengths:
2.5" (6.4 cm)
Measurement Standard:
SAE, Metric
Number Of Pieces:
17
Overall Height:
1.57" (4 cm)
Overall Length:
4.56" (11.6 cm)
Overall Width:
1.07" (2.7 cm)
Department:
Electrical
Product Group:
Hand Tools
Product Subgroup:
Hammers & Wrenches
Product Type:
Folding Set
Product Finish:
Black Phosphate
Product Size:
SAE Sizes 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4"; Metric Sizes 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm
Product Details:
Folding Set
Product Color:
Orange
Product Height:
1.0800 in
Product Material:
CR-V steel
Product Weight:
0.4900 lbs
Product Width:
1.4500 in
Product Depth:
4.5600 in

Klein Tools 70542 – Frequently Asked Questions

1) Does the Klein Tools 70542 folding hex key set include both SAE and metric sizes in one tool?
Yes, both standards are in the same handle. The 70542 carries 17 keys: SAE 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32 and 1/4 inch, plus metric 1.5, 2, 2.5, 3, 4, 5, 6 and 8 mm. For a service tech who hits both fastener standards in a day, that means one tool in the pouch instead of two separate folding sets.
2) Can I use the Klein 70542 folding hex keys on live electrical work?
No. The 70542 is not insulated, and the nylon handle is not rated protection against electrical shock. For energized work you need a tool that is specifically insulated and marked as such. De-energize the circuit before using this set.
3) How small is the Klein 70542 hex key set, will it actually fit in a pocket or a tool pouch?
It is genuinely pocketable. Closed, the set measures 4.56 inches long, 1.07 inches wide and 1.57 inches high, and it weighs 0.49 lbs. The handle itself is 4.6 inches. That drops into a shirt pocket or a small pouch slot without taking a full tool-bag pocket.
4) Will these hex keys reach into a deep recessed set screw?
Reach is limited. The blades run roughly 2.25 to 2.5 inches long, with key length listed at 2.5 inches, and the fold-out geometry means part of that sits in the handle. For shallow set screws, panel screws and equipment fasteners that is fine. For a deep counterbored socket cap screw you will want a long-arm loose L-key instead.
5) The keys in my folding hex set keep flopping open. Can the Klein 70542 be tightened?
Yes. Tension is adjustable with a #2 Phillips fastener on the body, so you can snug the keys up when they get loose or back them off if they are stiff to open. No special tool needed, any #2 Phillips driver does it.
6) Are the Klein 70542 hex key tips ball end or square cut?
Square cut, flat ends. They seat to full depth in the socket for maximum contact, which is what you want when a fastener is tight or the socket is already worn, since it reduces slipping and rounding out. The tradeoff versus a ball end is that you cannot work the key at an angle to the fastener.
7) Can I slip a pipe or cheater bar over the Klein 70542 handle for more torque?
No. Klein specifically warns against extending the handle length on this set. If a fastener will not break loose with the leverage the nylon handle gives you, move to a hex bit socket on a ratchet rather than risking a snapped blade or a broken handle. Eye protection is called for when using it either way.
8) What are the Klein 70542 hex keys made of and will they rust in a truck or a mechanical room?
The blades are heat-treated alloy steel, listed as CR-V (chrome vanadium), with a black phosphate finish that is applied to resist rust. That handles the humidity of a van box or a boiler room better than bare steel, though phosphate is a coating and not stainless, so wipe them down if they get soaked.
9) What is the Klein Tools part number for this folding hex key set, and where is it made?
The part number is 70542, sold as a single 17-piece folding set in orange. Country of origin is Vietnam. For distributors ordering it, 70542 is the full Klein designation, there are no size or finish variations to specify.
How fast can I get the Klein Tools 70542 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools 70542 come with a warranty?
Absolutely. The Klein Tools 70542 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools 70542?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Klein Tools 70542 from ZenSupply?
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