Proto JSCVM21 Combination Wrench 21 Mm 12-point Ratcheting

Product Description

The PROTO JSCVM21 is a 21 mm combination wrench designed for professional-grade fastener work in industrial, mechanical, and maintenance environments. It features a ratcheting, reversible 12-point box end with a 15-degree offset head angle, allowing access in tight spaces where a standard wrench cannot swing a full arc. The wrench measures 11-7/16 inches overall, is constructed from steel with a corrosion-resistant chrome finish, and is tether capable for use in elevated or safety-critical work areas. It meets ASME B107.100-2010 standards and carries a lifetime warranty. Licensed tradespeople and industrial mechanics are the primary installers of this tool.

This wrench is suited for heavy-duty fastener applications across manufacturing, maintenance, and mechanical service operations. The 21 mm head size is commonly used on larger fasteners found in industrial machinery, structural assemblies, and heavy equipment. The ratcheting box end reduces the need to reposition the wrench on the fastener, improving efficiency in confined or overhead work. The tether-capable design supports compliance with dropped-object prevention programs on job sites and elevated work platforms.

Key Features

• Ratcheting and reversible 12-point box end for efficient fastener drive in tight spaces
• 15-degree offset head angle provides clearance in confined work areas
• Tether-capable design supports dropped-object prevention requirements
• Corrosion-resistant chrome finish for durability in shop and field environments
• Meets ASME B107.100-2010 standards for combination wrenches
• Lifetime warranty coverage

Compatibility

Designed as an OEM-style professional combination wrench for 21 mm fastener applications in industrial and mechanical service settings.

Installation Notes

This tool is intended for use by qualified mechanics and maintenance technicians. Before use, inspect the wrench for cracks, wear, or damage and do not use a damaged tool. Ensure the fastener size matches the 21 mm head before applying torque to avoid fastener or wrench damage. When using in elevated environments, secure the wrench to an anchor point using an appropriate tether rated for the tool weight.