Williams Comfort Products 1221MSC-TH Combo Wrench 12PT 21MM

Product Description

The WILLIAMS COMFORT PRODUCTS 1221MSC-TH is a 12-point combination wrench sized at 21 millimeters. It features an open end on one side and a box end on the other, giving technicians two drive options from a single tool. The 12-point box end engages fastener flats at multiple positions, useful in confined spaces where swing arc is limited. At 0.82 pounds, it is a mid-weight hand tool suited for general mechanical, HVAC, plumbing, and electrical service work where metric fasteners are common.

This wrench is appropriate for both residential and commercial service environments. HVAC technicians reach for 21-millimeter wrenches when working on equipment mounting hardware, refrigerant line fittings, and unit connections that use metric fastener standards. Plumbers and general mechanical contractors will also find this size relevant on imported equipment and fixtures where metric hardware is specified by the manufacturer.

Key Features

• 12-point box end allows engagement at multiple fastener positions in tight clearances
• Open-end and box-end combination design provides two drive options in one tool
• 21-millimeter metric sizing for use on metric fasteners common in imported HVAC, plumbing, and mechanical equipment
• Compact weight of 0.82 pounds for comfortable single-hand use during service calls
• Sold individually, allowing technicians to replace or add specific sizes to an existing set

Compatibility

Designed as a standard 21-millimeter metric combination wrench suitable for use on metric fasteners across HVAC, plumbing, electrical, and general mechanical service applications.

Installation Notes

Hand tools of this type require no installation. Before using this wrench on equipment, de-energize electrical systems, shut off gas supply valves, and isolate refrigerant circuits as appropriate for the service task. Follow applicable codes and manufacturer torque guidelines for the fastener being serviced. Inspect the wrench for wear or damage before each use and replace if the jaw or box end shows deformation.

Technical Specifications

• Size: 21 millimeters
• Point Count: 12-point
• Weight: 0.82 pounds
• UPC: 662459960146
• Sold As: Each

Standard Information

• Brand: WILLIAMS COMFORT PRODUCTS
• Manufacturer Part Number: 1221MSC-TH