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Seven magnetic nut drivers in chrome finish with colour coded cushion grip handles

Klein Tools

Klein Tools 647M Nut Driver Set 7-Piece tool storage

SKU CH-H1TD-Y6JQJ

Seven-piece magnetic nut driver set with cushion-grip handles and hollow chrome-plated shafts for long-bolt work

  • Magnetic tips hold fasteners securely for easier use
  • Hollow shafts allow work on long bolts without obstruction
  • Cushion-Grip handles deliver greater torque and comfort
  • Chrome-plated shafts resist corrosion for longer life
  • Internal flanges anchor shafts firmly to prevent twisting

Professional magnetic nut-driver set

The Klein Tools 647M set provides seven magnetic nut drivers with six-inch shafts for automotive, electrical and general maintenance tasks. Internal flanges anchor each shaft to resist twisting under load. Chrome-plated hollow shafts allow access to long bolts while reducing corrosion. Cushion-Grip handles with colour-coded domes improve torque and quick size identification.

Magnetic tips and hollow shafts change fastener

Rare-earth magnetic tips hold nuts and bolts securely during positioning in tight or vertical locations. Full hollow shafts on six of the seven drivers let threaded rod pass through without removing the tool. The 3/16-inch driver omits the hollow feature because of its smaller diameter. Colour-coded handle ends let technicians select the correct size without reading markings.

Prop 65 notice and shaft limitation apply

The product carries a California Proposition 65 warning for chemicals linked to cancer and reproductive harm. Only the 3/16-inch driver lacks a hollow shaft, so very long bolts in that size cannot be driven through the tool. Buyers who need non-magnetic tips or insulated handles for live electrical work should look elsewhere. Made in USA.

How it compares

Measured against everything we stock in Tool Bags & Storage Cases, at today’s prices. Recalculated every night.

Price $67.99
Pricier than about 79% of the 2,748 comparable items (median $20.99).

Specifications

Product
Brand nameKlein Tools

Questions about this item

Will the chrome-plated hollow shafts on these nut drivers need periodic re-plating to prevent corrosion?

The chrome plating is applied at the factory to resist corrosion during normal use; it is not a serviceable coating and does not require re-plating, though keeping the shafts clean and dry extends their life.

Which component reaches its limit first during sustained high-torque fastening with the Cushion-Grip handles?

The internal flanges anchor each shaft against twisting, so the hollow shaft itself is the first part to yield if torque exceeds the material strength.

How much heat builds up in the handles during all-day repetitive driving?

The Cushion-Grip handles are designed to dissipate hand heat and remain comfortable during extended use; no significant temperature rise occurs under normal driving conditions.

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