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Klein Tools 630 magnetic nut driver 7/16 inch tip 3 inch hollow shank cushion grip

Klein Tools

Klein Tools 630 7/16 in Magnetic Nut Driver 3 in Shaft

SKU CH-7076-H0A4J

A 7/16-inch magnetic nut driver with a 3-inch hollow shank for bolt clearance

  • Magnetic tip holds 7/16 in fasteners securely
  • 3 in hollow shank reaches deep bolts
  • Cushion grip reduces hand fatigue during use
  • SAE sizing fits standard automotive hardware
  • California Prop 65 chemical warning applies

Magnetic 7/16-Inch Nut Driver

The Klein Tools 630 nut driver features a 7/16-inch magnetic tip designed to hold SAE fasteners securely during installation or removal. A 3-inch hollow round shank provides bolt clearance for recessed hardware. The cushion grip handle reduces hand fatigue during extended use. This accessory is built for professional trade applications.

Ideal for Electricians and Maintenance Crews

Professionals who regularly drive 7/16-inch hex nuts in electrical panels, HVAC units or automotive assemblies will benefit from the magnetic retention and deep bolt clearance. The tool is not insulated and carries no ESD rating, so it is unsuitable for live electrical work or static-sensitive environments. Buyers needing insulated shafts or non-magnetic tips should consider other options.

Verify Fastener Size and Clearance Needs

Confirm that the fasteners in your application are 7/16-inch SAE hex nuts before ordering. Ensure the 3-inch shank length and hollow round profile provide sufficient reach and clearance for your specific recessed bolt locations. Check that a non-insulated, magnetised tool complies with your workplace safety requirements and Proposition 65 handling procedures.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 88% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameKlein Tools

Questions about this item

Do I need a specific drive size for the 3-inch shaft to fit my drill?

The 3-inch shank fits standard 1/4-inch hex quick-change chucks found on most cordless drills and impact drivers.

Will the magnetic tip hold a 7/16-inch bolt while I thread it into an existing fastener?

Yes, the magnetized tip is designed to hold 7/16-inch fasteners securely during alignment and starting.

How can I confirm the hollow shank is clearing the bolt threads properly during use?

You will see the bolt threads protrude through the hollow shank end, confirming full engagement and clearance.

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