Proto JSCV12B Combination Wrench 3/8 Inch 12-point

Product Description

The PROTO JSCV12B is a 3/8 inch combination wrench designed for professional fastener work across mechanical, electrical, and plumbing trades. It features a 15-degree offset head angle and a 12-point box end, allowing access to fasteners in tight or restricted spaces. The wrench measures 5-29/32 inches overall length and is constructed from steel with a chrome finish that resists corrosion and wipes clean easily. The 9/32 inch head thickness keeps the profile low for use in confined areas. This is a hand tool suited for licensed tradespeople and experienced technicians working on mechanical assemblies, equipment panels, and piping connections.

The JSCV12B is a standard combination wrench appropriate for general mechanical service in residential and commercial settings. It fits 3/8 inch hex fasteners and works in HVAC equipment access, electrical panel work, plumbing fixture installation, and pool equipment service where hand-tightened or torqued fasteners of this size are common. The 15-degree offset head reduces knuckle clearance issues when working on flat surfaces or near obstructions.

Key Features

• 3/8 inch head size fits standard SAE hex fasteners
• 15-degree offset angle improves clearance on flat and recessed fastener locations
• 12-point box end provides more engagement positions than a 6-point in confined spaces
• 9/32 inch head thickness allows use in low-clearance areas
• Chrome finish on steel construction for corrosion resistance and easy cleaning
• Limited lifetime warranty coverage

Compatibility

Designed as a standard SAE combination wrench for use with 3/8 inch hex fasteners across mechanical, HVAC, plumbing, and electrical service applications.

Installation Notes

This wrench is a hand tool used by HVAC technicians, plumbers, electricians, and mechanical service professionals. No power-down or shutoff procedures apply to the tool itself, but always de-energize or isolate the system being serviced before using hand tools on live equipment. Inspect the wrench for cracks or deformation before each use and do not use a cheater bar or extension on the handle, as this can damage the tool or fastener.