Klein Tools LLK12 L-Style Hex ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$67.99
$13.61
Klein Tools LLK12 L-Style Hex Key Caddy Set 12-Piece

Klein Tools LLK12 L-Style Hex Key Caddy Set 12-Piece

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Model: LLK12
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$67.99
$13.61
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L-Style Hex Key Caddy Set 12-Piece

  • Warnings

    • Do NOT use a pipe or similar extension to increase leverage.
    • Always wear approved eye protection.
    • NOT insulated. Will NOT protect against electrical shock.

  • Features

    • Extra length for hard-to-reach applications
    • Hex Key caddy has a unique locking feature and marked slots for each key
    • Heat-treated and tempered for added strength and durability
    • Short side great for higher torque situations and low clearances
    • Made in USA
    • Hex sizes ranging from 0.050-Inch to 5/16-Inch
    • Top-grade alloy steel is tempered for added strength and finished with rust and corrosion resistant surfaces


LLK12 - spec sheet

Manufacturer Resources

Spec Sheet

Product Specs

Item Depth:
6.2500 in
Item Height:
1.0000 in
Item Weight:
0.5400 lbs
Item Width:
2.5000 in
Key Lengths:
0.563 to 6.313" (1.4 to 16 cm)
Number Of Pieces:
12
Overall Length:
6.25" (15.9 cm)
Department:
Electrical
Product Group:
Hand Tools
Product Subgroup:
Hammers & Wrenches
Product Type:
Caddy Set
Product Finish:
Satin
Product Details:
Caddy Set
Product Color:
Black
Product Material:
Alloy Steel/Steel
Product Weight:
8.6 oz (245 g)
Country Of Origin:
United States
Product Height:
1 in
Product Width:
2.5 in
Product Depth:
6.25 in

Klein Tools LLK12 – Frequently Asked Questions

1) What hex sizes come in the Klein LLK12 12-piece L-key set?
Twelve inch-sized keys: 3/64, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 and 5/16 inch. That covers the small set screws you hit on lever handles and knobs at the low end and larger equipment fasteners at 1/4 and 5/16. All twelve are inch sizes, so if your job is on metric fasteners this is the wrong set.
2) Are these Klein hex keys insulated for electrical work?
No. The LLK12 keys are not insulated and will not protect against electrical shock, even though the set is sold into the electrical trade. De-energize before working on anything live, and use a properly rated insulated tool if you need shock protection.
3) Are these long-arm hex keys or standard short ones?
Long arm. Key lengths in the LLK12 set run from 0.563 inch up to 6.313 inch (1.4 to 16 cm), so the long leg reaches recessed set screws down a deep bore or inside a panel. The short leg is there for high-torque and low-clearance work, which is the leg you use on a set screw right against a door face or a jamb.
4) Will the keys stay in the caddy in a tool bag or pouch?
The caddy has a locking feature that holds the keys in place, and each slot is marked with its size so you can pull the one you want without sorting through the set. Overall the caddy is 6.25 inches long, 2.5 inches wide and 1 inch high, and the whole set weighs 8.6 oz, so it drops into a pouch or bucket without adding much.
5) Can I put a cheater pipe on one of these for a seized set screw?
Don't. Klein specifically warns against using a pipe or similar extension to increase leverage on these keys, and eye protection should be worn while using them. If a fastener is seized past what the short leg will break loose, move to a socket-driven hex bit rather than extending the key.
6) Is the Klein LLK12 the right set for lever handle and knob set screws?
Yes for most lockset work. Door hardware set screws generally fall in the small-to-mid inch hex range, and the set carries 3/64, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64 and 5/32 inch keys, with 3/16 through 5/16 on hand for larger hardware and equipment. If a manufacturer specifies a metric hex on a particular trim, you will need a separate metric set.
7) What are the Klein LLK12 hex keys made of, and will they hold up in a damp mechanical room?
Top-grade alloy steel, heat treated and tempered, with a rust and corrosion resistant surface finish. The finish is satin and the caddy is black. They are made in the USA. That construction is what lets the smaller keys take torque without twisting off in the socket.
8) What is the exact Klein part number to order for this 12-piece hex key set?
Klein Tools LLK12 is the manufacturer part number, sold as a single 12-piece caddy set. There is one configuration, so there is no size, length, or finish option to specify on the order.
How fast can I get the Klein Tools LLK12 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 LLK12 come with a warranty?
Absolutely. The Klein Tools LLK12 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 LLK12?
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 LLK12 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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