Proto J6474E Electronic Torque Tester 5-50 Ft/lb

Product Description

The PROTO J6474E is an electronic torque tester designed to verify and calibrate torque output on hand tools and power tools. It covers a measurement range of 5 to 50 foot-pounds and delivers accuracy to plus or minus 1 percent in the clockwise direction and plus or minus 3 percent counterclockwise. The 3/8 inch drive accepts standard torque wrenches and drive tools for quick, repeatable testing. With an overall length of 5-5/8 inches, the unit is compact enough for bench use in a shop or tool room environment. HVAC technicians, mechanics, and calibration technicians use this tester to confirm torque tool performance before critical fastening operations.

The J6474E is suited for production floors, service shops, and tool calibration stations where torque tool accuracy must be verified on a scheduled or as-needed basis. It functions as both a torque meter and a calibrator, making it useful for incoming inspection of new tools and periodic recertification of existing ones. The 3/8 inch drive configuration covers a wide range of common torque wrenches used across HVAC, automotive, and general mechanical service.

Key Features

• Torque range of 5 to 50 foot-pounds covers common fastening applications
• Plus or minus 1 percent CW accuracy for high-confidence clockwise torque verification
• Plus or minus 3 percent CCW digit accuracy for counterclockwise testing
• 3/8 inch drive fits standard torque wrenches without adapters
• Compact 5-5/8 inch overall length suits bench-top and portable use
• Functions as both an electronic torque meter and a calibrator

Compatibility

Designed for use with 3/8 inch drive torque wrenches and drive tools requiring torque output verification within the 5 to 50 foot-pound range.

Installation Notes

This is a bench-top testing and calibration instrument, not a fastening tool. Secure the unit firmly before applying torque to prevent movement during measurement. Follow the tool manufacturer calibration interval recommendations and applicable shop quality procedures when using this tester for tool certification. No power-down or lockout procedures are required for the tools under test in a bench calibration context, though local shop safety policies should always be observed.