Klein Tools S18 Hollow Shaft Nut Driver 9/16 Inch

Product Description

The KLEIN TOOLS S18 is a 9/16-inch hollow shaft nut driver designed for fastening and loosening hex nuts and bolts in electrical and mechanical applications. The hollow shaft design allows the driver to fit over long threaded rod or extended bolt shanks, making it practical for conduit fittings, panel work, and equipment installations where standard nut drivers cannot reach. At 0.3 pounds, it is a lightweight hand tool built for repeated daily use by electricians and service technicians working in tight or awkward spaces.

This hollow shaft nut driver is suited for residential and commercial electrical work, HVAC equipment installation, and general mechanical service tasks. It is commonly used when fastening hex head fasteners on electrical enclosures, junction boxes, disconnect panels, and mechanical equipment where bolt threads extend beyond the nut face. The 9/16-inch drive size covers a common fastener specification found across a broad range of electrical and HVAC hardware.

Key Features

• Hollow shaft passes over extended bolt threads for deep-reach fastening
• 9/16-inch drive size fits standard hex nuts and bolts common in electrical and HVAC installations
• Lightweight at 0.3 pounds for reduced hand fatigue during extended use
• Hand tool construction requires no power source for reliable field use

Compatibility

Designed as a standard hollow shaft nut driver for use with 9/16-inch hex fasteners across electrical, HVAC, and mechanical service applications.

Installation Notes

This tool is used by electricians, HVAC technicians, and mechanical service professionals for hand-tightening and loosening hex fasteners. Always de-energize electrical equipment and follow lockout/tagout procedures before working inside panels or enclosures. No power tools or special adapters are required. Verify fastener size before use to avoid rounding hex heads.

Technical Specifications

• Drive Size: 9/16 inches
• Shaft Type: Hollow
• Weight: 0.3 pounds
• UPC: 09264432649

Standard Information

• Brand: KLEIN TOOLS
• Manufacturer Part Number: S18