Williams JHW1220MSC Combination Wrench 20 Mm 12-point

Product Description

The WILLIAMS COMFORT PRODUCTS JHW1220MSC is a 20 MM combination wrench built for professional service work where fastener integrity matters. The open end features a SUPERCOMBO profile with precision grooves that redirect wrenching force away from fastener corners, reducing the risk of rounding. The box end uses a SUPERTORQUE 12-point design that contacts the flat surfaces of a hex fastener rather than its corners, allowing higher applied torque without deforming the points. The high-polish chrome finish resists corrosion and simplifies cleanup in shop and field conditions. This wrench meets ANSI B107.6 and SAE AS 954 specifications.

The JHW1220MSC is suited for mechanical and maintenance work across HVAC, plumbing, electrical, and general trade applications wherever 20 MM metric fasteners are encountered. The 12-point box end provides more engagement positions in tight access areas, making it practical for confined spaces during equipment installation or service. The SUPERCOMBO open end gives technicians added flexibility on a wider range of fastener conditions, including partially rounded hardware.

Key Features

• SUPERCOMBO open end with grooves that redirect force away from fastener corners
• SUPERTORQUE 12-point box end contacts flat fastener surfaces for higher torque capacity without corner deformation
• Compatible with all common 6-point hex fasteners, offering advantage over conventional box end wrenches
• High-polish chrome finish for corrosion resistance and easy cleaning
• Meets ANSI B107.6 and SAE AS 954 federal specifications

Compatibility

Designed for use with 20 MM metric hex fasteners across a wide range of mechanical, HVAC, plumbing, and electrical service applications.

Installation Notes

This wrench is a hand tool intended for use by licensed trade professionals and qualified technicians. Always ensure the correct size wrench is fully seated on the fastener before applying torque to avoid slippage. De-energize and lock out equipment before servicing mechanical fasteners on live systems. Follow applicable codes and equipment manufacturer guidelines during service procedures.

Technical Specifications

• Opening Size: 20 MM
• Box End Type: 12-Point
• Open End Type: Rounded SUPERCOMBO
• Length: 11.4 inches
• Width: 1.6 inches
• Height: 0.8 inches
• Weight: 0.772 pounds
• Finish: High-Polish Chrome
• Standards: ANSI B107.6, SAE AS 954
• Unit of Measure: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: JHW1220MSC