Proto JN1204RMS Hollow Shaft Nut Driver 12mm 9.25 in

Product Description

The PROTO JN1204RMS is a 12mm hollow shaft nut driver designed for fastening and loosening hex nuts in confined spaces where standard solid-shaft drivers cannot reach. The hollow shaft allows the tool to slip over threaded rod or extended fasteners, expanding its range of applications across HVAC, electrical, and plumbing installations. At 9.25 inches overall length with a 4-inch blade, it provides reach and leverage for working in panel boxes, equipment enclosures, and mechanical assemblies. The ergonomic handle is designed to reduce hand fatigue during repetitive use. This tool is built to meet ANSI Spec B107.12 and carries a lifetime warranty.

This nut driver is suited for licensed tradespeople and maintenance technicians who regularly work with hex fasteners in tight or deep installations. Typical applications include securing conduit fittings, mounting hardware in electrical panels, HVAC equipment assembly, and plumbing fixture work. The 12mm drive size covers a common range of metric fasteners found in residential and light commercial mechanical systems. The included pouch provides jobsite storage and transport.

Key Features

• Hollow shaft design allows use over threaded rod or extended bolt shanks
• 12mm drive size fits common metric hex fasteners
• 9.25-inch overall length with 4-inch blade for added reach in deep applications
• Ergonomic handle reduces hand fatigue during extended use
• Meets ANSI Spec B107.12 for nut driver performance requirements
• Lifetime warranty included

Compatibility

Designed as a general-purpose 12mm hollow shaft nut driver compatible with standard hex fastener applications in HVAC, electrical, and plumbing service work.

Installation Notes

This tool is intended for use by qualified tradespeople including electricians, HVAC technicians, and plumbers. Always de-energize electrical panels and disconnect power before performing fastener work near live circuits. Verify the drive size matches the fastener before applying torque to avoid rounding. Store in the included pouch to protect the shaft and handle between uses.