Proto J1220MASD Combination Wrench 20 Mm Satin Steel

Product Description

The PROTO J1220MASD is a 12-point combination wrench designed for professional use in industrial, mechanical, and maintenance environments. It features a 20 mm head size with a 15-degree offset angle, giving technicians the clearance needed to work in tight or obstructed spaces. The wrench is constructed from steel with a satin finish and measures 11-13/32 inches overall in length. It meets ASME B107.100 standards and is corrosion-resistant, making it a reliable hand tool for demanding job sites. The tether-capable design supports tool-tethering safety programs used in elevated work areas and controlled environments.

This wrench is suited for mechanical technicians, millwrights, pipefitters, and maintenance professionals working on industrial equipment, heavy machinery, and structural fasteners requiring metric sizing. The 20 mm head fits standard metric fasteners commonly found in commercial HVAC equipment, pumps, compressors, and general mechanical assemblies. The straight handle and 15-degree offset head improve access in recessed or flanged applications where a flat wrench cannot seat properly.

Key Features

• 20 mm head size for metric fastener applications
• 15-degree offset angle improves clearance in confined spaces
• 12-point box end for greater contact and reduced fastener rounding
• Satin finish reduces glare and provides corrosion resistance
• Tether-capable design supports drop-prevention safety programs
• Meets ASME B107.100 standard for combination wrenches
• Limited lifetime warranty

Compatibility

Designed as a standard metric combination wrench for use with 20 mm fasteners in industrial, mechanical, and maintenance applications.

Installation Notes

Use by qualified mechanical or maintenance technicians following applicable site safety protocols. Ensure the wrench is fully seated on the fastener before applying torque to prevent slippage and fastener damage. When working at height or over open equipment, attach the wrench to an approved tether anchor point using a compatible tethering system. Inspect the wrench for cracks or deformation before each use and remove from service if damaged.