Klein Tools 409-70591 9-Key Folding Hex Nutdriver
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Adjustable 1/4" torque screwdriver with 1.20–3.00 Nm range and ESD-safe handle
This 1/4" adjustable torque screwdriver lets you set a tightening value between 1.20 and 3.00 Nm. It is built for technicians who must meet exact torque specifications on sensitive electronic assemblies. The ESD-compliant handle protects components from electrostatic discharge during fastening.
The tool relies on manual force, so it generates no motor heat, fan noise or electrical power draw. A tactile click signals when the preset torque is reached, giving consistent feedback without vibration or audible mechanical whine. The ergonomic handle reduces hand fatigue during repetitive fastening tasks.
The integrated scale window displays the selected torque value directly on the tool, removing the need for a separate gauge. A 1/4" bit holder accepts standard bits, letting you switch drive profiles quickly without additional adapters. These features cut setup time on production lines and repair benches.
Measured against everything we stock in Screwdrivers, Nut Drivers & Hex Keys, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | WERA |
| Product type | Screwdrivers |
Turn the adjustment sleeve until the scale shows the required value between 1.20 and 3.00 Nm, then lock the sleeve so the setting cannot shift during use.
The conductive handle grip should be replaced once its surface resistance rises above the ESD-safe threshold.
The clutch disengages at the preset value anywhere from 1.20 to 3.00 Nm, stopping further tightening.
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