Klein Tools 630-7/16 Hollow Shaft Nut Driver 7/16 in Hex

Product Description

The KLEIN TOOLS 630-7/16 is a cushion-grip nut driver built for trade professionals who work with fasteners on long bolts and threaded studs. The hollow shaft design allows the driver to fit over extended bolt lengths without bottoming out, making it practical for electrical panel work, HVAC equipment fastening, and general mechanical assembly. The hex drive size is 7/16 inches, the shank measures 3 inches, and the overall length is 7-5/16 inches. Licensed electricians, HVAC technicians, and plumbers will find this driver useful wherever a standard solid-shaft driver cannot seat fully on a fastener.

This nut driver is suited for residential and light commercial service work. It is commonly used when installing or servicing electrical enclosures, motor mounts, control panels, and mechanical equipment requiring 7/16-inch hex fasteners. The hollow shaft makes it especially practical for situations where a bolt protrudes beyond the nut, a common condition in conduit fittings, junction boxes, and equipment knockouts. It is sold individually as a single unit.

Key Features

• Hollow shaft accommodates long bolts and threaded studs without obstruction
• 7/16-inch hex drive size fits standard trade fasteners
• 3-inch shank length provides reach in recessed or tight spaces
• 7-5/16-inch overall length balances reach and control
• Cushion-grip handle reduces hand fatigue during repeated fastening
• Brown handle color provides quick visual identification of the 7/16-inch size

Compatibility

Designed as a standard 7/16-inch hollow-shaft nut driver suitable for use with 7/16-inch hex fasteners common in electrical, HVAC, plumbing, and mechanical trade applications.

Installation Notes

No power source is required for this hand tool. Ensure the hex drive is fully seated on the fastener before applying torque to avoid rounding the nut. When working inside energized enclosures, follow NFPA 70E arc-flash safety guidelines and use appropriate PPE. Inspect the handle and shaft for cracks or deformation before each use.

Technical Specifications

• Hex Drive Size: 7/16 inches
• Shank Length: 3 inches
• Overall Length: 7-5/16 inches
• Shaft Type: Hollow
• Handle Style: Cushion Grip
• Handle Color: Brown
• Weight: 0.25 pounds
• UPC: 092644650062

Standard Information

• Brand: KLEIN TOOLS
• Manufacturer Part Number: 630-7/16