Gearwrench 81840 Combination Wrench 36 Mm 12-point

Product Description

The GEARWRENCH 81840 is a 36 mm combination wrench built for heavy-duty fastener work in automotive, industrial, and mechanical service applications. The wrench features a 12-point offset box end and an open end, both sized at 36 mm, giving technicians two engagement options on the same tool. Constructed from steel with a satin finish, it measures 19.96 inches overall and weighs 3.01 pounds. The corrosion-resistant finish holds up in shop environments where exposure to fluids and grime is routine. This wrench meets ANSI and ASME standards and carries a limited lifetime warranty.

The 81840 is suited for use on large hex fasteners found in heavy equipment, truck drivetrain components, industrial machinery, and large-diameter plumbing or mechanical fittings. The offset box end provides knuckle clearance in tight spaces, while the open end allows fast placement on fasteners with limited swing arc. At 36 mm, this is a large-format wrench most commonly used by diesel mechanics, heavy equipment technicians, and industrial maintenance crews working on metric-fastened assemblies.

Key Features

• 36 mm head size fits large metric hex fasteners
• 12-point box end increases engagement positions and reduces slip risk
• Offset head design provides knuckle clearance in confined work areas
• Steel construction with satin, corrosion-resistant finish
• Meets ANSI and ASME standards for combination wrenches
• Limited lifetime warranty from GEARWRENCH

Compatibility

Designed as an OEM-style replacement and standard combination wrench for use on 36 mm metric hex fasteners across heavy equipment, automotive, and industrial applications.

Installation Notes

This wrench is a hand tool requiring no power source or special installation. Always confirm the fastener size before applying torque to avoid rounding. Use appropriate personal protective equipment when working under vehicles or on pressurized systems. Power down and de-energize or depressurize any system before servicing fasteners on mechanical assemblies.