Proto JSCV12F Combination Wrench 3/8 Inch Ratcheting

Product Description

The PROTO JSCV12F is a 3/8-inch combination wrench built for trade professionals who need a compact, ratcheting open-end and box-end tool in a single package. The box end features a 12-point, 15-degree offset head that reduces knuckle clearance requirements in tight quarters. The head is rated for corrosion resistance and finished in chrome for durability and easy cleaning. At 5 inches overall length and 0.13 pounds, this wrench is sized for confined-space fastener work on HVAC equipment panels, electrical enclosures, and plumbing fixture hardware. It meets ASME standards and is tether-capable for overhead or elevated work environments.

This wrench is suited for residential and light commercial service work where a 3/8-inch fastener is the target size. Typical applications include securing equipment access panels, mounting hardware on air handlers, and general maintenance tasks across HVAC, plumbing, and electrical trades. The tether-capable design makes it appropriate for rooftop unit service, elevated platforms, or any jobsite with a tool-drop safety requirement. The straight handle and compact head profile allow use in locations where a full-size wrench cannot be positioned effectively.

Key Features

• Ratcheting box end allows fastener driving without repositioning the wrench on each stroke
• 15-degree head offset reduces knuckle clearance needs in confined spaces
• 12-point box end fits both standard hex and 12-point fasteners
• Tether-capable design supports compliance with tool-drop prevention programs
• Corrosion-resistant chrome finish for extended service life in wet or outdoor environments
• Meets ASME standards for hand tool dimensional and performance requirements

Compatibility

Designed as an OEM-style service wrench for 3/8-inch fasteners commonly found across HVAC, plumbing, and electrical equipment in residential and light commercial applications.

Installation Notes

This tool is used by licensed HVAC technicians, plumbers, electricians, and general service trades for routine fastener work. Before servicing any equipment, de-energize electrical circuits at the disconnect and shut off gas or water supply as applicable to the work being performed. When working at elevation or in overhead spaces, attach the wrench to an approved tether anchor point before beginning work to meet fall-protection and tool-drop requirements on the jobsite.