Proto J6474 Electronic Torque Tester 60-600 In/lb

Product Description

The PROTO J6474 is an electronic torque tester designed to measure and verify torque output across a range of 60 to 600 inch-pounds (5 to 50 foot-pounds). Built for trade and calibration environments, it delivers plus or minus 1% accuracy, making it suitable for verifying torque wrenches and powered fastening tools against specification. The 3/8 inch drive accepts standard sockets and adapters, allowing technicians to test a wide variety of tooling without additional hardware. HVAC technicians, industrial mechanics, and calibration technicians rely on this type of instrument to confirm that fastening tools are performing within acceptable tolerances before critical work begins.

The J6474 is suited for use in tool rooms, calibration labs, and field service settings where torque tool verification is required. It functions as both an electronic torque meter and a calibrator, supporting routine QC checks and pre-job tool validation. Applications include verifying torque wrenches used in HVAC equipment assembly, refrigeration compressor service, and mechanical installations where fastener preload is critical to system integrity and safety.

Key Features

• Torque range of 60 to 600 inch-pounds (5 to 50 foot-pounds) covers a wide spectrum of common fastening applications
• Plus or minus 1% accuracy supports reliable tool calibration and quality control
• 3/8 inch drive accepts standard sockets and adapters for broad tool compatibility
• Functions as both an electronic torque meter and a calibrator in a single unit
• Electronic display provides direct torque readings without mechanical interpretation

Compatibility

Designed as an OEM-style torque verification instrument compatible with 3/8 inch drive torque wrenches and powered fastening tools that fall within the 60 to 600 inch-pound measurement range.

Installation Notes

This instrument is used by mechanics, calibration technicians, and trade professionals for tool verification rather than direct fastener installation. Ensure the tool under test is within the rated torque range of the tester before applying load. Follow applicable calibration procedures and reference standards relevant to your industry or facility requirements when using this unit for formal tool certification.