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Adapter for NRHD4
NRHDA4 - spec sheet
Warnings
- Always wear approved eye protection.
Features
- Improved Ball Detent
- 1/2-Inch male square, works with a 7/16-Inch impact driver
- Lock pin secures socket
- Black phosphate for corrosion resistance
- Adapter sold individually and included with the 4-in-1 Impact Socket (NRHD4)
- 7/16-Inch hex quick-release adapter for Cat. No. NRHD4
- Overall length - 2-15/32-Inch (6.3 cm)
NRHDA4 - spec sheet
Manufacturer Resources
Spec Sheet
Product Specs
- Drive Size:
- 7/16"
- Number Of Points:
- Adapter
- Overall Height:
- 0.625" (1.6 cm)
- Overall Length:
- 2.75" (7 cm)
- Overall Width:
- 0.625" (1.6 cm)
- Socket Size:
- 1/2" Male Square
- Standards:
- ASME B107.4
- Department:
- Electrical
- Product Group:
- Hand Tools
- Product Subgroup:
- Sockets & Wrenches
- Product Type:
- Socket Adapter & Extension
- Product Details:
- Impact Socket Adapter
- Product Height:
- 0.4500 in
- Product Material:
- Steel
- Product Weight:
- 0.1800 lbs
- Product Width:
- 0.4500 in
- Product Depth:
- 2.4750 in
- Country of Origin:
- Taiwan
Klein Tools NRHDA4 – Frequently Asked Questions
1) What does the Klein Tools NRHDA4 adapter actually connect to?
It bridges a 7/16-inch hex impact driver to a 1/2-inch square drive socket. The driver end is a 7/16-inch hex quick-release shank, and the output is a 1/2-inch male square. So if you're running a 7/16-inch hex impact wrench (the standard on lineman and utility impact tools), this is what lets you put a 1/2-inch drive socket on it.
2) Do I need to buy the NRHDA4 adapter separately if I already bought the Klein NRHD4 socket?
No. The adapter ships with the NRHD4 4-in-1 impact socket. The NRHDA4 is sold on its own as a replacement or a spare for crews who lose them out of the bucket, not as a required add-on to a new NRHD4.
3) Will the socket stay on the adapter, or does it fall off overhead?
Two things hold it. The square drive has an improved ball detent, and there's a lock pin that secures the socket to the adapter. That matters on a bucket or a pole where a dropped socket is a hazard and a trip back down.
4) Is the Klein NRHDA4 adapter rated as a real impact adapter or just a hand-tool adapter?
It is built as an impact socket adapter in steel and is made to ASME B107.4, the standard covering driving square ends for hand and impact socket tools. It's intended for powered impact use with a 7/16-inch hex driver, not just a ratchet.
5) Can I use the NRHDA4 with any 1/2-inch drive impact socket, or only the Klein NRHD4?
The output is a standard 1/2-inch male square, so it drives 1/2-inch drive impact sockets generally. It's specifically listed as the quick-release adapter for Klein's NRHD4 4-in-1 impact socket, which is where the lock pin retention is designed to engage.
6) What part number do I order to replace a lost Klein 4-in-1 socket adapter?
Order Klein Tools NRHDA4. That is the manufacturer part number for the 7/16-inch hex to 1/2-inch square quick-release adapter that goes with the NRHD4 socket.
7) Will the NRHDA4 hold up outdoors on utility and line work?
The adapter is steel with a black phosphate finish for corrosion resistance, which is why it's spec'd for outdoor utility and electrical work rather than a bench-only adapter. Keep in mind Klein's own warning for this tool: always wear approved eye protection when running it.
8) How much room does the NRHDA4 add between my impact and the socket?
It's a compact adapter, 0.625 inch (1.6 cm) across in both height and width, so it doesn't add bulk around a nut in a tight enclosure or on a crowded terminal block. Weight is 0.18 lb, negligible on the end of an impact.
How fast can I get the Klein Tools NRHDA4 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 NRHDA4 come with a warranty?
Absolutely. The Klein Tools NRHDA4 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 NRHDA4?
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
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