ACDelco ARM601-4 1/2” Digital Torque Wrench | ISO 6789, Calibration Certificate, Buzzer

Precision in your hands

The ACDelco ARM601-4 1/2 inch digital torque wrench is built for automotive work that demands repeatable results. Its lightweight composite housing, ergonomic soft grip, and clear LCD readout make it comfortable to use from the first bolt to the last. A built-in audible buzzer and LED notification provide visual and audible confirmation as you approach or reach your target torque, helping you work efficiently without taking your eyes off the fastener.

Key capabilities for everyday workflows

Readouts in multiple units ft-lbs, Nm, in-lb, and kg-cm help you match fasteners to your preferred standard. The device offers multi setting functions including Torque, Measurement, and Peak & Trace, with a torque range that covers 14.8 to 147.5 ft-lbs and an accuracy profile of 2% clockwise / 3% counterclockwise of the indicated value. It is designed to meet or exceed ISO 6789 standards and includes a serialized certificate of calibration traceable to NIST, providing a documented reference for high-precision work.

• Lightweight composite housing with an ergonomic soft grip reduces fatigue during long sessions and provides a secure, comfortable feel.
• Large LCD display delivers real-time torque values in ft-lbs, Nm, in-lb, and kg-cm for quick cross checks.
• Multi setting functions include Torque, Measurement, and Peak & Trace to support diverse tasks and verification needs.

What you get and how it stays powered

• Kit includes the digital torque wrench, instruction manual, and a rugged hard-shell case for safe storage and transport.
• Powered by four AAA batteries, offering a lightweight solution without cords or heavy adapters.
• Each unit ships with a calibration certificate and a unique serial number for traceability.

As you use the ARM601-4, remember that consistent torque can be influenced by technique and application. The tool is designed to help you apply torque with clarity and confidence, supporting dependable fastener performance in automotive and industrial settings.