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Gedore Torque QSA 4 FH Ergo Quickset Adjustable Torque Screwdriver (0.8 – 4 lbf·in)

Specifications:

  • Torque Range: 0.8 – 4.0 lbf·in
  • Drive Size: 1/4” female hex drive (accepts standard screwdriver bits)
  • Accuracy / Repeatability: ±6% (Complies with ISO 6789 standards)
  • Tool Weight: 124 g (0.124 kg)
  • Adjustment Mechanism: Quickset micrometer calibrated scale
  • Torque Mechanism: Slipping torque-limiting action
  • Handle Style: Ergonomic anti-slip comfort grip (FH Ergo design)

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Features

Features:

The Gedore Torque QSA 4 FH Ergo Quickset is an ultra-fine, imperial-calibrated adjustable torque screwdriver specifically engineered for extreme precision micro-assembly operations. Operating within an delicate range of 0.8 to 4 lbf·in (pound-force inches), this screwdriver allows operators to make rapid, exact torque adjustments directly on the shop floor without requiring external setting tools or calibration rigs.

Featuring an internal torque-limiting slipping clutch mechanism and a clear, micrometer-calibrated scale, the QSA 4 FH disengages automatically when the preset torque limit is reached, eliminating any risk of over-tightening or stripping ultra-small component threads. Weighing a mere 124 grams, its featherweight build and ergonomic grip offer maximum tactile feedback and unmatched repeatability (±6%) for high-precision micro-electronics, avionics, medical device manufacturing, and delicate assembly tasks.

Key Benefits & Features

  • Ultra-Low Imperial Torque Precision: Specially engineered to perform within the sensitive 0.8 – 4 lbf·in scale, protecting delicate, micro-fasteners and fragile sub-assemblies.
  • Calibrated Quickset Scale: Clear micrometer scale permits fast, precise, and repeatable torque settings directly on the line without secondary equipment.
  • Zero Over-Torquing: The internal slipping mechanism disengages automatically once set torque is met, making thread stripping and over-tightening impossible.
  • Featherweight Design: Weighing only 124 g, it drastically reduces operator hand and wrist fatigue during continuous, high-volume assembly shifts.
  • Universal 1/4″ Hex Receiver: Compatible with all standard 1/4” driver bits, providing maximum operational versatility.
  • Industrial Durability: Heavy-duty internal construction guarantees long tool life and reliable repeatability (±6%) under demanding industrial duty cycles.

    Industry Applications

  • Electronics & Semiconductor Assembly: Micro-fasteners on printed circuit boards (PCBs), mobile electronics, server modules, and delicate sensors.
  • Aerospace & Defense Avionics: Precision flight deck instruments, optical mounts, radar hardware, and micro-wiring assemblies.
  • Medical Devices & Fine Instruments: Surgical equipment manufacturing, diagnostic gear, laboratory optics, and precision calibration.
  • Electrical Controls & Telecommunications: Delicate terminal block connections, switchgear relays, and communications hardware.
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