Proto J1220MBASD Combination Wrench 20 Mm 15 Degree Offset

Product Description

The PROTO J1220MBASD is a 20 mm combination wrench built for professional-grade fastener work in demanding trade environments. It features a 12-point box end with a 15-degree offset head angle, giving technicians the clearance needed to drive fasteners in tight or obstructed spaces. The open end and box end are machined from steel with a corrosion-resistant finish. Overall length is 11-13/32 inches, and the wrench weighs 0.61 pounds. It is tether capable, making it suitable for work at height or in environments where dropped-tool protocols are enforced.

This wrench is used across mechanical, electrical, and industrial maintenance trades wherever metric fasteners are standard. The 15-degree offset is a common configuration for engine compartment work, structural assembly, and equipment maintenance where a flat wrench cannot reach. The tether-capable design makes it appropriate for elevated work platforms, tower maintenance, and confined-space jobs governed by dropped-object prevention programs. It is not rated as non-sparking and is not magnetic or ratcheting.

Key Features

• 20 mm head size fits standard metric fasteners
• 12-point box end for multiple engagement positions per revolution
• 15-degree offset head angle improves clearance in confined spaces
• Tether capable for compliance with dropped-object prevention programs
• Corrosion-resistant steel construction for long service life
• Meets GGG-W-636E federal specification standard
• Lifetime warranty from the manufacturer

Compatibility

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

Installation Notes

This wrench is a hand tool used by mechanics, millwrights, electricians, and general maintenance technicians. Always ensure the wrench is fully seated on the fastener before applying torque to prevent rounding. When using in tethered applications, attach an approved lanyard through the tether point before beginning work. Inspect for cracks or deformation before each use and remove from service if damaged.