Wiha 28553 Adjustable Torque Screwdriver 0.8 to 5 Nm

Product Description

The WIHA 28553 is an adjustable torque screwdriver designed for precision fastening applications where controlled torque is critical. It covers a torque range of 0.8 to 5 newton-meters (Nm) with an adjustment increment of 0.20 Nm, allowing technicians to dial in exact torque settings for sensitive assemblies. The screwdriver carries a calibration accuracy of plus or minus 6 percent and is rated for a minimum of 5,000 cycles. It includes a cushion grip handle for comfort during extended use and ships with both a calibration certificate and a torque setting adjustment tool. Electricians, HVAC technicians, and instrumentation professionals who work with torque-sensitive fasteners will find this tool suitable for their daily service work.

This torque screwdriver is suited for residential and light commercial applications where repeatable, low-range torque control is required. Typical use cases include terminal block fastening, panel assembly, equipment installation, and any task requiring documented torque compliance. The included calibration certificate supports quality control and inspection requirements in service environments where traceability is mandated.

Key Features

• Adjustable torque range from 0.8 to 5 Nm in 0.20 Nm increments
• Plus or minus 6 percent calibration accuracy per ASME B107.14M, BS EN 26789, and EN ISO 6789 standards
• Rated for a minimum of 5,000 cycles for extended service life
• Cushion grip handle reduces hand fatigue during repetitive fastening tasks
• Includes calibration certificate for quality control and compliance documentation
• Includes torque setting adjustment tool for field reconfiguration

Compatibility

Designed for use with compatible torque screwdriver bits and accessories standard to adjustable torque screwdrivers in the 0.8 to 5 Nm class. Consult bit compatibility for specific drive sizes before use.

Installation Notes

This tool is intended for use by qualified trade professionals including electricians, HVAC technicians, and instrumentation specialists. Before adjusting torque settings, consult the included adjustment tool and the manufacturer instructions to avoid out-of-calibration operation. Do not exceed the maximum rated torque of 5 Nm, as overloading the mechanism can affect accuracy and shorten tool life. Retain the calibration certificate for any service records or compliance audits that require documented torque traceability.