Proto J6345 Digital Torque Wrench 3/8 in Drive 250 In/lb

Product Description

The PROTO J6345 is a digital torque wrench with a 3/8 inch drive, designed for precision fastener installation in mechanical, automotive, and industrial service applications. It delivers a torque range starting at 2.10 foot-pounds with a maximum output of 250 inch-pounds (28 Nm), with a fine graduation of 0.10 in/lb and 0.010 Nm for repeatable, accurate readings. At 10.625 inches overall length and 1.77 pounds, it is compact enough for tight access points while maintaining the rigidity required for calibrated torque work. The fixed head design keeps the drive geometry consistent, reducing variables during measurement. Licensed mechanics, industrial maintenance technicians, and assembly professionals rely on this tool where torque documentation and accuracy are required.

The J6345 suits residential and commercial mechanical service work where fastener torque specs must be met and verified. Typical applications include engine assembly, suspension work, HVAC equipment fastening, and any application requiring documented torque values in inch-pound or Newton-meter units. The 3/8 inch drive accepts standard 3/8 inch sockets, making it compatible with a broad inventory of existing socket sets. It is well suited to service bays, field technicians, and facilities maintenance personnel who require a digital readout over a traditional click-type wrench.

Key Features

• Digital torque readout with 0.10 in/lb graduation for precise, repeatable measurements
• Maximum torque capacity of 250 in/lb (28 Nm) with a minimum of 2.10 ft/lb
• 3/8 inch drive size compatible with standard socket sets
• Fixed head design for consistent drive angle during torque application
• Compact 10.625 inch overall length suited to confined service environments
• Dual-unit display supports both inch-pound and Newton-meter readings

Compatibility

Designed as a direct-use digital torque wrench for any application requiring a 3/8 inch drive with a torque range up to 250 in/lb. No specific model compatibility data was provided by the manufacturer for this listing.

Installation Notes

This torque wrench should be used by qualified mechanics or technicians familiar with torque specifications for the fasteners being serviced. Before use, verify the display reads zero and the battery is adequately charged. Store the wrench at its minimum torque setting when not in use to preserve the internal mechanism. Do not use the wrench as a breaker bar or apply force beyond its rated maximum capacity.