Wiha 28500 Adjustable Torque Screwdriver 0.04-0.46 Nm

Product Description

The WIHA 28500 is an adjustable torque screwdriver designed for precision fastening applications where consistent, controlled torque output is critical. It covers a torque range of 0.04 to 0.46 Nm with a 0.02 Nm graduation increment, allowing technicians to dial in exact settings for sensitive assemblies. The 1/4-inch drive accepts standard bits, and the ergonomic handle supports extended use without fatigue. ESD-safe construction makes it suitable for work on electrostatic-sensitive components. Each unit ships with a calibration certificate and is rated for a minimum of 5,000 cycles. Licensed electricians, electronics technicians, and instrumentation pros are the primary installers of this tool.

This screwdriver is used in applications where overtorque or undertorque can damage components or compromise system integrity. Common environments include control panel assembly, relay and terminal block installation, low-voltage electrical work, and field calibration tasks. Its ESD-safe design makes it appropriate for circuit board work and sensitive electronic assemblies. The adjustable mechanism suits both bench and field use where multiple torque settings are required across a shift.

Key Features

• Adjustable torque range: 0.04 to 0.46 Nm with 0.02 Nm graduation increments
• Accuracy within plus or minus 10 percent
• 1/4-inch drive for compatibility with standard bit sets
• ESD-safe construction for use on electrostatic-sensitive components
• Rated for a minimum of 5,000 operating cycles
• Includes calibration certificate meeting ASME B107.14M, BS EN 26789, and EN ISO 6789 standards

Compatibility

Designed for use with standard 1/4-inch drive screwdriver bits in precision torque applications across electrical, instrumentation, and electronics assembly work.

Installation Notes

This tool should be set to the specified torque value before engaging fasteners. Verify the torque setting against the calibration certificate before use on critical assemblies. Do not exceed the maximum rated torque of 0.46 Nm. Periodic recalibration is recommended to maintain accuracy in accordance with applicable quality or maintenance standards.