Proto J6066C Micrometer Torque Wrench 1000 In/lb 3/8 Drive

Product Description

The PROTO J6066C is a micrometer-style ratchet head torque wrench built for precise fastener torque application in HVAC, plumbing, and general mechanical service work. It features a 3/8 inch drive and covers a torque range of 40 to 119 newton-meters, equivalent to approximately 354 to 1000 inch-pounds, with graduations of 5 in/lb for repeatable accuracy. The overall length is 15.5 inches. This wrench is suited for licensed technicians and trade professionals who need reliable, adjustable torque output on bolted connections in confined or standard access conditions.

The J6066C is appropriate for residential and light commercial service applications where 3/8 inch drive tools are standard. Typical uses include tightening equipment mounting hardware, refrigerant line fittings, motor mount bolts, and other fasteners requiring controlled torque. The micrometer-style adjustment mechanism allows the technician to dial in a target value before engaging the fastener, reducing the risk of over-torquing threaded connections on system components.

Key Features

• Micrometer-style adjustment for repeatable torque setting before each use
• Torque range: 40 to 119 Nm (approximately 354 to 1000 in/lb)
• Graduation of 5 in/lb for fine torque control
• 3/8 inch drive accepts standard sockets and adapters
• Ratchet head design for efficient operation in tight spaces
• Overall length of 15.5 inches provides useful leverage for typical service tasks

Compatibility

Designed as a general-purpose 3/8 inch drive micrometer torque wrench suitable for use with standard 3/8 inch drive sockets and accessories across a wide range of mechanical service applications.

Installation Notes

This tool is used by HVAC technicians, plumbers, and mechanical service professionals. Always set the torque value before applying the wrench to the fastener, and return the wrench to its minimum setting after use to preserve the internal spring mechanism. Do not use this wrench to loosen fasteners, as back-driving can damage the internal click mechanism. Store in the provided case or a protected location to maintain calibration.