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Klein Tools 646 nut driver 3/16 inch tip 6 inch hollow shaft cushion grip

Klein Tools

Klein Tools 646 3/16 in Nut Driver 6 in Hollow Shaft

SKU CH-MY9R-JDB79

A hollow-shaft nut driver with 6 in bolt clearance for 3/16 in fasteners

  • 3/16 in tip fits matching fasteners precisely
  • 6 in hollow shaft clears long bolts easily
  • Cushion grip reduces hand fatigue during use
  • Non-magnetic tip avoids unwanted metal contact
  • California Proposition 65 warning included for compliance

3/16 in Nut Driver with 6 in Hollow Shaft

This Klein Tools nut driver fits 3/16 in fasteners and features a 6 in hollow shaft for bolt clearance. The cushion grip provides comfort during extended use. It is a non-magnetic, non-insulated hand tool suited for general fastening tasks.

California Proposition 65 warnings apply

This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Verify that your workplace safety policies address this classification before ordering.

Hand tool thermals and power

As a manual nut driver it generates no heat, produces no noise and draws no electrical power in normal use. There are no thermal, acoustic or power-supply considerations for the operator.

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

Does the 646 nut driver come with any extra bits or do I need to buy them separately?

The 646 is a single 3/16-inch hollow-shaft nut driver with a cushion grip. No extra bits or accessories are included.

Is the 6-inch hollow shaft the only length offered for the 3/16-inch size?

The listed specification shows a 6-inch shank length and 6-inch bolt clearance for this 3/16-inch driver.

What does the 6-inch bolt clearance mean when I am working on a threaded rod?

The hollow shaft allows a bolt or threaded rod to pass through up to 6 inches deep so you can drive nuts that sit far down on long studs.

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