Klein Tools 409-70591 9-Key Folding Hex Nutdriver
- 5/64, 3/32, 7/64, 1…
- Hex Keys & Accessor…
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Heavy-duty square shank allows wrench-assisted turning with bolster reinforcement and cushion-grip handle for greater torque and comfort
The Klein Tools 600-4 is a heavy-duty hand screwdriver built for professionals who need maximum torque on slotted fasteners. Its square shank allows wrench-assisted turning for stubborn screws. The bolster reinforces the shank to withstand hard use on job sites. It suits electricians and maintenance technicians requiring reliable performance.
The single specification that decides fit is the 1/4 inch keystone tip width matched to the screw slot. This tip profile provides a secure engagement that resists cam-out during high-torque applications. Precision machining ensures an exact fit in compatible fasteners. Select this driver only when the screw slot matches this specific width and keystone geometry.
The cushion-grip handle delivers greater torque transfer and comfort during extended use, reducing hand fatigue. Tip-Ident marking on the handle quickly identifies the screwdriver type and tip orientation in a crowded tool bag. These features speed up selection and improve control on the job. No additional accessories or software are included with this tool.
Measured against everything we stock in Screwdrivers, Nut Drivers & Hex Keys, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | Klein Tools |
| Product type | Screwdrivers |
| Size & build | |
| Shipping weight | 0.13 kg |
| Package size | 287 × 66 × 32 mm |
The precision-machined keystone tip fits slotted fasteners exactly, and the heavy-duty square shank lets you apply a wrench for extra torque without damaging the tool.
The square shank accepts a wrench for assisted turning, and the bolster reinforces the shank so it withstands high torque without bending.
The 4-inch shank plus cushion-grip handle requires enough depth for the full blade length and hand room to apply force comfortably.
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