Klein Tools BLK12 L Style Ball...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$87.63
$26.13
Klein Tools BLK12 L Style Ball End Hex Key Caddy Set 12-Piece

Klein Tools BLK12 L Style Ball End Hex Key Caddy Set 12-Piece

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Model: BLK12
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$87.63
$26.13
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L Style Ball End 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

    • Heat-treated and tempered for added strength and durability
    • Extra length for hard-to-reach applications
    • Ball end works on angles up to 25-degrees
    • Rust and corrosion resistance surfaces
    • Each set contains a unique locking feature and marked slots for each key
    • Durable caddy keeps hex keys organized
    • Includes 12 sizes - .050-Inch, 1/16-Inch, 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 5/16-Inch
    • Made in USA
    • L-style hex keys in convenient caddy sets
    • Top-grade alloy steel


BLK12 - spec sheet

Manufacturer Resources

Product Specs

Department:
Electrical
Product Group:
Hand Tools
Product Subgroup:
Hammers & Wrenches
Product Color:
Black
Product Height:
0.8800 in
Product Weight:
0.5300 lbs
Product Width:
3.8800 in
Product Depth:
10.5000 in
Product Type:
Hex Key Set

Klein Tools BLK12 – Frequently Asked Questions

1) Are these Klein hex keys metric or inch sizes?
Inch only. All 12 keys in the BLK12 are fractional/decimal inch sizes, from .050 inch up to 5/16 inch. If you are working on equipment with metric set screws, this set will not fit them and you need a metric L-key set instead.
2) Can I use these hex keys on a set screw I cannot reach straight on?
That is what the ball end is for. The ball end on the BLK12 keys works at angles up to 25 degrees off the screw axis, so you can get into recessed or obstructed set screws where a straight key will not line up. The keys are also extra length for hard-to-reach work. Use the straight end for final tightening, since the ball end carries less torque.
3) Are the Klein BLK12 hex keys insulated for live electrical work?
No. Klein states plainly that these keys are NOT insulated and will not protect against electrical shock. De-energize the circuit before using them. For live work you need keys or drivers rated and marked for insulated use, not this set.
4) Do the keys stay in the caddy or fall out of the truck box?
The BLK12 caddy has marked slots for each key plus a locking feature that holds them in place, so keys do not spill out when the caddy is tossed in a bag or van bin. The marked slots also make it obvious at a glance which size is missing before you leave a job.
5) Will these hex keys hold up to daily use, or will they twist?
The BLK12 keys are top-grade alloy steel, heat-treated and tempered for strength, with a rust and corrosion resistant surface finish. Klein does warn against slipping a pipe or other extension over a key to gain leverage, which is the usual way an L-key gets twisted or snapped. If a fastener needs more torque than the key will take by hand, move to a hex bit socket.
6) What is the exact Klein part number to order for the 12-piece ball end caddy set?
Order Klein Tools BLK12. That is the single model for the 12-piece L-style ball end hex key caddy set in inch sizes, finished in black.
7) How big is the Klein BLK12 caddy set and how much does it weigh?
The caddy measures 10.5 x 3.88 x 0.88 inches and the set weighs 0.53 lbs. Slim enough to drop into a tool pouch or a drawer in a service cart without taking a full tray.
8) Is the Klein BLK12 hex key set made in the USA?
Yes, the BLK12 L-style ball end hex key set is made in the USA. That matters on public and institutional purchases where domestic sourcing is part of the buying requirement.
How fast can I get the Klein Tools BLK12 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 BLK12 come with a warranty?
Absolutely. The Klein Tools BLK12 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 BLK12?
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 BLK12 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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