Proto J6014MC Micrometer Torque Wrench 70-350 Nm 1/2 Drive

Product Description

The PROTO J6014MC is a micrometer-type ratchet head torque wrench designed for precision fastener work across mechanical, HVAC, and industrial service applications. It delivers a torque range of 70 to 350 Newton meters (Nm) through a 1/2-inch square drive, making it suitable for medium-to-heavy fastening tasks where accurate torque values are critical. The micrometer-style adjustment mechanism allows technicians to dial in a target torque setting and lock it before use, reducing the risk of under- or over-torquing. At 27.125 inches overall length and 5.87 pounds, this wrench provides the leverage needed for high-torque fastener applications without excessive bulk.

This torque wrench is used in residential and commercial service environments wherever controlled torque application is required. Typical applications include mechanical system assembly, equipment installation, and component fastening in HVAC, plumbing, and general industrial settings. The 1/2-inch drive accepts standard sockets, making it compatible with common socket sets already in most service vans. The ratcheting head allows operation in confined spaces without removing and repositioning the wrench on each stroke.

Key Features

• Micrometer-style adjustment for precise torque setting from 70 to 350 Nm
• 1/2-inch square drive fits standard socket sets
• Ratchet head allows use in tight spaces without full-arc swing
• 27.125-inch overall length provides mechanical advantage for high-torque fastening
• Weighs 5.87 pounds for a balance of durability and handleability

Compatibility

Designed for use with standard 1/2-inch drive sockets. Suitable for any application requiring controlled torque in the 70 to 350 Nm range.

Installation Notes

This tool is intended for use by qualified technicians familiar with torque specifications for the fasteners and assemblies being serviced. Always set the wrench to the lowest torque value when storing to preserve the internal spring calibration. Do not use this wrench as a breaker bar or for loosening fasteners, as impact loading can damage the internal mechanism. Consult the applicable equipment service manual or code requirement for the required torque value before use.