Proto J6016NMC Micrometer Torque Wrench 40-200 Nm

Product Description

The PROTO J6016NMC is a micrometer-type ratchet head torque wrench built for precise fastener torque application in professional trade environments. The wrench covers a torque range of 40 to 200 Newton meters (Nm) and features a 1/2 inch square drive with a ratcheting head for efficient operation in tight quarters. Overall length is 21.5 inches. The micrometer adjustment mechanism allows technicians to dial in a target torque value and repeat it consistently across multiple fasteners, reducing the risk of over- or under-torquing. Licensed mechanics, industrial maintenance techs, and HVAC or plumbing installers working with flanged connections and large fasteners rely on this class of wrench for daily production work.

The J6016NMC is suited for applications requiring controlled torque output in the mid-to-high Nm range. Typical use cases include automotive and heavy equipment service, mechanical equipment assembly, pipe flange bolting, and structural fastener installation. The 1/2 inch drive accepts standard impact and hand sockets, making it compatible with common socket sets already in the field. The 21.5 inch overall length provides the leverage needed for accurate torque delivery at the higher end of the range without excessive physical effort from the technician.

Key Features

• Micrometer-style adjustment dial for repeatable torque settings between 40 and 200 Nm
• Ratcheting head allows forward torque without repositioning the wrench on the fastener
• 1/2 inch drive accepts a wide range of standard sockets
• 21.5 inch overall length provides leverage for high-Nm applications
• Newton meter scale aligns with international torque specifications common in industrial and equipment service

Compatibility

Designed as a general-purpose 1/2 inch drive micrometer torque wrench compatible with standard 1/2 inch drive sockets and accessories across professional trade and industrial service applications.

Installation Notes

Torque wrenches should be used only for the final tightening pass and not for loosening fasteners, as back-driving damages the internal mechanism. Store the wrench with the torque setting backed off to the minimum value to preserve the calibration spring. Calibration should be verified periodically per manufacturer recommendations or applicable workshop quality standards. Always match the drive size and socket to the fastener to avoid rounding or slippage.