Proto JSCR12 Ratcheting Combination Wrench 3/8 Inch

Product Description

The PROTO JSCR12 is a 12-point ratcheting combination wrench sized at 3/8 inch, designed for use in tight spaces where a standard wrench cannot complete a full swing. The head is offset at 15 degrees with a 1/8-inch head thickness, allowing clearance over fasteners in recessed or confined locations. The straight handle measures 6.25 inches overall length and is finished in chrome for corrosion resistance. Built from steel and rated to ASME standards, this wrench is tether-capable for use in elevated or overhead work environments. Licensed trades, maintenance technicians, and service professionals will find this tool suited to everyday fastener work.

The JSCR12 fits standard 3/8-inch hex fasteners and is appropriate for mechanical, plumbing, HVAC, and electrical service applications where a compact ratcheting wrench is needed. The 15-degree offset head angle provides knuckle clearance and improved access in panel enclosures, equipment bays, and service compartments. The tether-capable design makes it compatible with tool lanyard systems, meeting fall-protection requirements on elevated job sites or in overhead service work. It is a single-piece, non-sparking-rated no, non-magnetic, non-reversing ratcheting wrench intended for general trade use.

Key Features

• 12-point ratcheting head for reduced swing arc in confined spaces
• 15-degree offset angle provides knuckle clearance and access in tight bays
• Tether-capable design supports use with tool lanyards on elevated work sites
• Chrome finish provides corrosion resistance for long service life
• Meets ASME standards with a lifetime warranty
• Compact 6.25-inch overall length for use in restricted service compartments

Compatibility

Designed as an OEM-style replacement and standard service wrench for 3/8-inch hex fasteners across residential and commercial mechanical, HVAC, plumbing, and electrical applications.

Installation Notes

This wrench is a hand tool requiring no installation. Before servicing equipment, de-energize electrical panels per NFPA 70E lockout/tagout procedures and shut off gas or fluid supply lines as required by the applicable trade code. Inspect the ratchet mechanism before each use and do not apply extension bars or pipe cheaters to the handle, as this can damage the ratchet head. When working at height, attach the wrench to a rated tool lanyard through the tether point to comply with fall-protection requirements.