Klein Tools Locknut Wrench Set...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$74.74
$17.83
Klein Tools Locknut Wrench Set

Klein Tools Locknut Wrench Set 3-Piece 1/2-Inch 3/4-Inch 1-Inch Carbon Steel Magnetic Storage

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Model: 50900R
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$74.74
$17.83
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Klein Tools Locknut Wrench Set 3-Piece 1/2-Inch 3/4-Inch 1-Inch Carbon Steel Magnetic Storage

Professional-Grade Locknut Installation and Removal Tool Set

The Klein Tools Locknut Wrench Set delivers professional-grade locknut installation and removal performance for electrical conduit applications. This carbon steel 3-piece wrench set features patent-pending opposing offset bend design for electricians, linemen, and electrical professionals, providing the reliable performance and industry-leading quality that tradesmen demand from America's most trusted tool manufacturer.

Professional Features & Benefits

Advanced Wrench Design

  • Patent-Pending Opposing Offset Bends - Provides easy access to difficult-to-reach locknuts in tight electrical installations with Klein's precision engineering
  • Hooked Tip Design - Latches securely onto locknut for ultimate turn leverage and professional control during installation
  • Slim Alloyed Steel Construction - Allows access when space is limited while maintaining Klein's durability standards
  • Color-Coded Size Identification - Each wrench features different color and clear size marking for quick identification during electrical work

Magnetic Storage System

  • Internal Magnetic Storage - Two internal magnets on each wrench hold the complete set together for organized tool storage and Klein quality convenience
  • Corrosion-Resistant Steel Design - Durable construction withstands harsh electrical environments while maintaining Klein's professional reliability
  • Complete Size Coverage - Three wrenches included for most commonly used conduit sizes ensuring comprehensive electrical installation capability

Technical Specifications

Set includes three locknut wrenches in 1/2-inch, 3/4-inch, and 1-inch sizes for comprehensive conduit locknut applications. Carbon steel construction with corrosion-resistant finish. Overall dimensions: 6.46 inches length, 1.9 inches width, 1.78 inches height. Total weight: 0.2 pounds. Patent-pending opposing offset bend design with internal magnetic storage system.

Installation & Usage

  1. Select appropriate wrench size matching locknut diameter for proper electrical conduit installation
  2. Position hooked tip securely onto locknut ensuring full engagement for safe operation
  3. Apply steady turning force using opposing offset bend leverage advantage for professional results
  4. Utilize slim profile design to access tight spaces around electrical boxes and conduit fittings
  5. Store wrenches together using internal magnetic system for organized tool management
  6. Inspect locknut tightness following Klein Tools professional installation standards

Professional Applications

Ideal for:

  • Electrical Conduit Installation - EMT, rigid, and IMC conduit locknut tightening and removal in commercial and industrial applications
  • Panel Box Connections - Securing conduit connections to electrical panels, junction boxes, and distribution equipment
  • Telecommunications Work - Installing and maintaining conduit systems for data and communication cable routing
  • HVAC Electrical Connections - Conduit locknut installation for heating, ventilation, and air conditioning electrical systems
  • Industrial Maintenance - Locknut service and replacement in manufacturing and processing facility electrical systems
  • Residential Wiring - Home electrical conduit installations and electrical service upgrades
  • Commercial Electrical - Office building, retail, and institutional electrical conduit system installation
  • Utility and Lineman Work - Electrical distribution system conduit connections and maintenance applications

Magnetic Storage Advantage

Klein Tools innovative magnetic storage system keeps the complete wrench set organized and readily accessible during electrical installations. The internal magnets eliminate lost tools while the patent-pending offset bend design provides superior access to tight spaces around electrical equipment, delivering the precision and reliability that electrical professionals demand from Klein Tools engineering excellence.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has maintained its commitment to manufacturing the highest quality tools for electrical professionals. This locknut wrench set exemplifies Klein's dedication to innovative design, rigorous testing protocols, and the trusted reliability that electricians and linemen depend on for safe, efficient electrical installations and maintenance work.



KLN-50900R - spec sheet

Manufacturer Resources

Spec Sheet

Product Specs

Application:
Tighten and Loosen Locknuts
Included:
(3) Locknut Wrenches, 1/2", 3/4" and 1"
Number Of Pieces:
3
Overall Height:
1.78" (4.5 cm)
Overall Length:
6.46" (16.4 cm)
Overall Width:
1.9" (4.8)
Product Type:
Locknut Wrench
Department:
Electrical
Product Group:
Electrical Installation Tools
Product Subgroup:
Conduit Tools
Product Size:
1/2", 3/4" and 1"
Product Details:
Locknut Wrench Set
Product Height:
1.7840 in
Product Material:
Carbon Steel
Product Weight:
0.2000 lbs
Product Width:
1.9000 in
Product Depth:
6.4650 in

Klein Tools 50900R – Frequently Asked Questions

1) Can I get at a locknut inside a crowded panel with this wrench set?
That is what the shape is for. Each wrench uses opposing offset bends and a slim steel body so you can come at a locknut that a screwdriver and hammer cannot reach, and the hooked tip latches onto the lug so it does not slip off while you turn. Overall the set is only 6.46 inches long, so it fits a pouch or a panel cavity.
2) Will these locknut wrenches work on EMT, rigid and IMC conduit locknuts?
Yes. The Klein locknut wrench set is made for tightening and loosening locknuts on EMT, rigid and IMC conduit connections at panels, junction boxes and distribution gear, in the 1/2, 3/4 and 1 inch trade sizes it covers.
3) Do the three Klein locknut wrenches stay together, or do they come loose in the bag?
They nest together. Each wrench has two internal magnets that hold the set as one unit, so all three stay stacked in a pouch instead of scattering. Each one is also a different color with the size marked, so you grab the right size without sorting.
4) Is the Klein 50900R sold as a set or do I buy the sizes separately?
It ships as a three-piece set under part number 50900R, with all three wrenches (1/2, 3/4 and 1 inch) included. There is no single-size purchase here, so for stocking multiple crews you are buying complete sets.
5) Is a locknut wrench better than using a screwdriver and hammer to seat conduit locknuts?
A hammer and screwdriver mars the locknut lugs and can crack a plastic bushing or deform the knockout. These wrenches hook the lug and let you apply steady turning force through the offset bend, which seats the nut without beating on it and works the same way in reverse for removal on a retrofit or panel change-out.
6) What are these Klein locknut wrenches made of, and will they hold up in a damp mechanical room?
Carbon steel with a corrosion-resistant finish. That holds up to the wet and dusty conditions in mechanical rooms and industrial plants, though like any carbon steel tool they should be wiped down rather than left sitting in standing water.
7) How much room does the Klein 50900R set take up in a tool pouch?
Stacked as a set it measures 6.46 x 1.9 x 1.78 inches and weighs about 0.2 pounds, so it drops into a pouch pocket or a panel bag without adding noticeable weight to a belt.
How fast can I get the Klein Tools 50900R 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 50900R come with a warranty?
Absolutely. The Klein Tools 50900R 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 50900R?
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 50900R 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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