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Klein Tools 7/32-Inch Hollow Shaft Nut Driver with 3-Inch Chrome-Plated Shaft
Professional precision tool for electrical and mechanical applications
Klein Tools delivers professional-grade reliability with this 7/32-inch hollow shaft nut driver featuring a 3-inch chrome-plated shaft. Engineered for electrical professionals and technicians, this precision tool excels in stacked circuit board work and long bolt applications where standard drivers cannot reach. The hollow shaft design allows the driver to fit over extended bolts and studs, while internal flanges provide solid, twist-resistant anchoring for consistent performance.
Professional Features & Benefits
- 7/32-Inch Precision Size: Exact fit for standard electrical and mechanical fasteners ensures optimal torque transfer and prevents fastener damage.
- 3-Inch Hollow Shaft Design: Facilitates work on stacked circuit boards and long bolt applications where conventional drivers cannot access.
- Chrome-Plated Shaft: Corrosion-resistant finish extends tool life and maintains smooth operation in demanding environments.
- Internal Flanges: Provide solid, twist-resistant shaft anchor for reliable torque application and enhanced durability.
- Comfordome Handle: Smooth, ergonomic design fits the palm comfortably for extended use without fatigue.
- ASME/ANSI Compliance: Meets or exceeds applicable specifications for professional tool standards and reliability.
- Color-Coded Handle: Easy identification system speeds tool selection and improves workflow efficiency.
Technical Specifications
- Department: Electrical
- Product Group: Hand Tools
- Product Subgroup: Screwdrivers & Drivers
Professional Applications
- Electrical panel and control cabinet assembly
- Circuit board installation and maintenance
- Long bolt and stud applications
- Electrical equipment servicing
- Industrial maintenance operations
- Commercial electrical installations
- Professional repair and troubleshooting
Why Choose Klein Tools Quality?
Klein Tools maintains its reputation for professional-grade reliability through precision manufacturing and adherence to ASME/ANSI specifications. The chrome-plated finish and internal flange construction ensure long-term durability, while the ergonomic Comfordome handle design supports extended professional use. This hollow shaft nut driver represents Klein Tools' commitment to providing specialized solutions for demanding electrical and mechanical applications.
Manufacturer Resources
S10 Spec Sheet
Product Specs
- Product Group:
- Hand Tools
- Department:
- Electrical
- Product Subgroup:
- Screwdrivers & Drivers
- Product Type:
- Nut Driver
Klein Tools S5 – Frequently Asked Questions
1) What sizes does the Klein Tools hollow shaft nut driver come in?
Five hex sizes: 5/32 inch (S5), 7/32 inch (S7), 5/16 inch (S10), 11/32 inch (S11), and 3/8 inch (S12). All share the 3-inch hollow shaft and Comfordome handle, and the handles are color coded so you can grab the right size out of a pouch without reading the stamp.
2) What does a hollow shaft nut driver do that a solid shaft one cannot?
The hollow shaft slides down over a bolt or stud that projects past the nut, so you can drive nuts on long threaded rod, stacked circuit board standoffs, and panel studs where a solid-shaft driver bottoms out on the end of the bolt. On these Klein drivers the hollow section runs the full 3-inch shaft, so 3 inches is the practical limit of bolt projection you can swallow.
3) Is a 3-inch shaft long enough for work inside an electrical panel or control cabinet?
For surface nuts and studs in a panel or control cabinet, yes, and the driver is built for that work. But 3 inches is a short shaft. If the nut sits deep in a recess or behind other gear, you want a longer-shank nut driver or a socket on an extension instead, because the 3-inch shaft plus handle will not reach past the obstruction.
4) Will these Klein nut drivers hold up to hard torque without the shaft spinning in the handle?
The shaft is anchored in the handle with internal flanges, which is the twist-resistant construction Klein uses so the shaft does not rotate inside the grip under load. The shaft itself is chrome plated for corrosion resistance. Klein states the drivers meet or exceed applicable ASME/ANSI specifications.
5) Which nut driver size do I need for common electrical box and panel hardware?
Hex sizes here run 5/32, 7/32, 5/16, 11/32 and 3/8 inch. Measure across the flats of the nut, not the thread. As a rule of thumb for standard hex machine screw nuts, a #8 nut takes 11/32, a #10 nut takes 3/8, and 1/4-20 hardware is beyond this range. Buy the size, not the guess, since an oversized driver rounds the nut.
6) Can I use these hollow shaft nut drivers on stacked circuit boards and standoffs?
That is one of the jobs the design targets. The hollow shaft passes over the threaded standoff sticking up through a board, letting you reach the nut on a lower board in a stack. Pick the size by the nut across the flats: 5/32 and 7/32 cover the small board hardware, with 5/16 through 3/8 for larger chassis nuts.
7) Are these individual drivers or a set?
Each order is a single nut driver in one hex size, identified by its own Klein model number, S5 through S12. If you want the full spread of 5/32, 7/32, 5/16, 11/32 and 3/8, order each size separately.
8) Is the handle comfortable enough for a full day of repetitive driving?
Klein uses its Comfordome handle on these, a smooth domed shape meant to sit in the palm so you can push through the tool rather than pinch it, which is what wears your hand out on repetitive panel and assembly work. There is no ratchet or cushion grip claim here, just the molded ergonomic handle.
How fast can I get the Klein Tools S5 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 S5 come with a warranty?
Absolutely. The Klein Tools S5 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 S5?
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 S5 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.