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Klein Tools 667 #3 square recess nutdriver 12 1/4 in cushion grip chrome shank

Klein Tools

Klein Tools 667 #3 Square Recess Nutdriver 12 1/4 in

SKU CH-NCD6-4DK5S MPN 667

A #3 square-recess nutdriver with a 12 1/4 in overall length for general-purpose fastening

  • Product typeScrewdrivers
  • Sold asEach
  • Number of items1
  • #3 square recess tip drives compatible fasteners securely
  • 12 1/4 inch overall length provides extended reach in tight spaces
  • Cushion grip handle reduces hand fatigue during prolonged use
  • Chrome shank coating resists corrosion for lasting durability
  • Sold individually for precise inventory control

Product Identity

The Klein Tools 667 is a #3 square recess nutdriver designed for general purpose fastening tasks. It features a cushion grip handle and measures 12 1/4 inches in overall length. The tool is sold individually as a single unit.

Upgrade Context

This nutdriver replaces worn or missing #3 square drivers in a professional toolkit. The jump is worth it when the current tip is rounded enough to cam out of square recess fasteners. It does not suit users needing insulated, magnetic or non-sparking variants for specialised environments.

Sustained Use Behaviour

The chrome coated shank resists corrosion during repeated exposure to workshop conditions. The cushion grip reduces hand fatigue during extended fastening sessions. No ESD safe rating means it is not intended for static sensitive electronics assembly.

How it compares

Measured against everything we stock in Screwdrivers, Nut Drivers & Hex Keys, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 75% of the 415 comparable items (median $11.99).

Specifications

Product
Brand nameKlein Tools
Model name667
Product typeScrewdrivers
In the box
Number of items1

Questions about this item

What overall length does the 667 nutdriver measure for reaching fasteners?

The 667 nutdriver has an overall length of 12 1/4 in, giving extended reach for deep or recessed square-recess fasteners.

How do you correctly engage the #3 square tip without stripping the recess?

Align the #3 square tip fully into the fastener recess, apply steady axial pressure, and turn; the common error is angling the driver, which cams out and damages the corners.

When should the chrome shank be inspected or the tool replaced?

Inspect the chrome shank for rounding or cracking after heavy torque jobs; replace the nutdriver if the #3 square tip shows worn edges or the cushion grip splits.

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