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Klein Tools 7/16 inch magnetic nut driver with 6 inch shaft and cushion grip

Klein Tools

Klein Tools 646-7/16M 7/16 inch magnetic nut driver 6 inch shaft

SKU CH-XE4D-NF7ZX

Magnetic tip holds 7/16 inch fasteners securely on a six inch hollow shank

  • Magnetic tip holds 7/16 in fasteners securely
  • 6 in shaft reaches recessed bolts easily
  • Hollow round shank clears bolt threads fully
  • Cushion grip reduces hand fatigue during use
  • Klein Tools quality trusted by professionals daily

7/16 Inch Magnetic Nut Driver

The Klein Tools 646-7/16M is a hollow-round shank nut driver sized for 7/16 inch fasteners. A magnetised tip holds the bolt during placement. The cushion grip handle suits professional and DIY users driving hex nuts in electrical, HVAC or automotive work. The six inch shank reaches recessed hardware.

Check fastener size and clearance

Verify the fastener is exactly 7/16 inch SAE before ordering. The six inch bolt clearance depth must match the recessed depth of your application. This driver is not insulated and not ESD safe, so it is unsuitable for live electrical panels or static-sensitive electronics assembly. The hollow shank design requires the bolt to protrude into the shank cavity.

Thermals noise and power draw

As a hand tool the driver produces no operational noise and draws no power. The cushion grip remains comfortable during extended use without generating heat. No thermal management is required. California Proposition 65 warnings apply for chemicals known to cause cancer and reproductive harm.

How it compares

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

Price $8.99
Cheaper than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameKlein Tools

Questions about this item

What comes in the box with the Klein Tools 646-7/16M nut driver and do I need to buy anything else to use it?

The package includes the single 7/16 inch magnetic nut driver with a 6 inch hollow shank and cushion grip; no extra parts are required to start driving 7/16 inch fasteners.

How do I choose between the different versions or capacities of this nut driver?

This model is a single fixed size — 7/16 inch tip with a 6 inch shaft — so you simply select it when that exact fastener size and reach are needed.

What does the 6 inch shaft length mean when I am working in a real machine or tight engine bay?

The 6 inch hollow round shank provides 6 inches of bolt clearance, letting you reach recessed 7/16 inch nuts while the magnetised tip holds the fastener during placement.

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