Klein Tools 4-Inch Hollow Shaf...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$14.26
Klein Tools 4-Inch Hollow Shaft Cushion-Grip Nut Driver

Klein Tools 4-Inch Hollow Shaft Cushion-Grip Nut Driver

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Model: 630-9/16

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

$14.26
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Klein Tools 9/16-Inch Hollow Shaft Nut Driver with 4-Inch Shaft and Cushion-Grip Handle

Professional precision tool for electrical and mechanical applications

The Klein Tools 9/16-Inch Hollow Shaft Nut Driver delivers professional-grade performance with its 4-inch shaft length and Cushion-Grip handle design. This premium steel construction tool features a full hollow shaft that facilitates work on stacked circuit boards and long bolt applications, while the internal flanges provide solid, twist-resistant shaft anchoring for reliable operation.

Professional Features & Benefits

  • 9/16-Inch Hollow Shaft Design: Full hollow shaft construction enables work on stacked circuit boards and accommodates long bolts and studs for versatile applications.
  • 4-Inch Shaft Length: Standard length provides optimal reach for most applications while maintaining precise control and torque transfer.
  • Cushion-Grip Handle: Ergonomic rubber handle design allows for greater torque application and enhanced comfort during extended use.
  • Premium Chrome Plating: Chrome plated finish delivers smooth operation and superior corrosion resistance for long-lasting performance.
  • Tip-Ident System: Color-coded identification system with orange handle end quickly identifies nut driver size for efficient tool selection.
  • ASME/ANSI Compliance: Meets or exceeds applicable ASME/ANSI specifications ensuring professional quality and reliability standards.
  • Made in USA: Domestic manufacturing ensures consistent quality control and supports American craftsmanship standards.

Technical Specifications

  • Color Code: Orange
  • Department: Electrical
  • Depth: 9.3750 in
  • Handle Material: Rubber
  • Height: 1.2420 in
  • Insulated: No
  • Magnetic: No
  • Material: Steel
  • Measurement Standard: SAE
  • Nut Driver Sizes: 9/16"
  • Overall Length: 9.375" (23.8 cm)
  • Product Group: Hand Tools
  • Product Subgroup: Screwdrivers & Drivers
  • Shaft Length: 4" (10.2 cm)
  • Weight: 0.3500 lbs
  • Width: 1.9170 in

Professional Applications

  • Electrical panel and circuit board assembly work
  • HVAC equipment installation and maintenance
  • Industrial machinery assembly and repair
  • Automotive and equipment service applications
  • Construction and building maintenance tasks
  • Professional electrical contractor operations
  • Manufacturing and production line assembly

Why Choose Klein Tools Quality?

Klein Tools delivers professional-grade reliability with premium steel construction, chrome plating for corrosion resistance, and ASME/ANSI specification compliance. Made in USA manufacturing ensures consistent quality control and durability for demanding professional applications, while the ergonomic Cushion-Grip handle design provides enhanced comfort and torque capability for extended use.

Product Specs

Product Group:
Hand Tools
Shaft Length:
4" (10.2 cm)
Magnetic:
No
Product Weight:
0.3500 lbs
Product Subgroup:
Screwdrivers & Drivers
Overall Length:
9.375" (23.8 cm)
Measurement Standard:
SAE
Product Material:
Steel
Department:
Electrical
Product Type:
Operating Handle
Product Depth:
9.3750 in
Insulated:
No
Handle Material:
Rubber

Klein Tools 630-9/16 – Frequently Asked Questions

1) What sizes does the Klein 630 hollow shaft nut driver come in?
Two SAE sizes: 9/16 inch (model 630-9/16) and 5/8 inch (model 630-5/8). Both are inch sizes, not metric, so they won't seat properly on metric hex nuts.
2) Will this Klein nut driver fit over a long bolt or threaded rod?
Yes. The shaft is fully hollow the whole 4 inch length, so a long bolt, stud, or piece of all-thread passes straight up through it while you run the nut down. That is the main reason to buy the 630 instead of a solid-shaft driver, which bottoms out as soon as the thread protrudes past the nut.
3) Is the Klein 630 nut driver rated for live electrical work?
No. The 630 is not insulated, so it is not for use on energized conductors. For live work you need a driver carrying a 1000V insulated rating. The 630 is fine for de-energized panel, control cabinet, and equipment assembly work.
4) Does this nut driver hold the nut magnetically?
It does not. The 630 has no magnetic tip, and because the shaft is hollow it can't retain a nut the way a magnetic solid-shaft driver does. Overhead or blind-hole work where you need the fastener to stay put calls for a magnetic driver instead.
5) Will a 9/16 nut driver work on stacked circuit board standoffs?
Yes, that is a designed use for the Klein 630. The hollow shaft clears the standoff threads and board-mount posts that stop a solid driver, so you can run hex standoffs on stacked boards. Note it is a hand driver, not insulated, so the assembly should be de-energized.
6) What is the orange end on the Klein nut driver handle for?
That's Klein's Tip-Ident color coding. The color band on the handle end tells you the driver size at a glance when the tool is sitting in a pouch or roll, which matters if you're carrying a full set of sizes on the truck.
7) Can you get good torque on a tight nut with this driver?
The handle is a rubber Cushion-Grip built for higher torque application, and the shaft is anchored in the handle by internal flanges so it resists twisting loose under load. Steel shaft with chrome plating for corrosion resistance. The tool weighs 0.35 lbs, so it stays easy to work with overhead.
How fast can I get the Klein Tools 630-9/16 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 630-9/16 come with a warranty?
Absolutely. The Klein Tools 630-9/16 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 630-9/16?
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 630-9/16 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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