Proto J6020NM Micrometer Torque Wrench 160-800 Nm 3/4 Drive

Product Description

The PROTO J6020NM is a micrometer-style ratcheting torque wrench built for high-torque fastening applications requiring precise, repeatable results. It covers a torque range of 160 to 800 Newton Meters (Nm) with a 4 Nm graduation, giving technicians fine control across a wide working range. The 3/4-inch square drive suits heavy-duty sockets commonly used in mechanical, industrial, and fleet maintenance settings. At 41-9/16 inches overall length, the wrench provides substantial leverage for large-fastener work. Licensed mechanics, millwrights, and heavy equipment technicians are the primary users of this tool.

This wrench is suited for high-torque assembly and disassembly tasks in commercial vehicle service, industrial equipment maintenance, and heavy mechanical contracting. The micrometer adjustment mechanism allows the operator to dial in a specific torque value before driving, then the ratchet head enables efficient fastener engagement without repositioning the wrench on every stroke. It is appropriate for both shop bench work and on-equipment field service where large-diameter fasteners require controlled torque values.

Key Features

• Torque range of 160 to 800 Nm with 4 Nm graduation for precise setting
• 3/4-inch square drive for compatibility with heavy-duty socket sets
• Micrometer-style adjustment for repeatable, accurate torque settings
• Ratchet head design reduces handle repositioning during fastening sequences
• 41-9/16 inch overall length provides extended leverage for large fasteners

Compatibility

Designed for use with 3/4-inch drive sockets and accessories in heavy-duty mechanical service applications requiring torque settings between 160 and 800 Nm.

Installation Notes

This tool should be used by qualified mechanics or technicians familiar with torque specifications for the fasteners being serviced. Always set the wrench to the lowest torque value when storing to relieve spring tension and maintain calibration accuracy. Follow the equipment manufacturer's torque specifications and applicable service standards when using this wrench. Do not use extension bars or cheater pipes on the handle, as this will produce inaccurate torque readings and may damage the wrench.