Proto JN31604RS Nut Driver 3/16 Inch Hollow Shaft 8 Inch

Product Description

The PROTO JN31604RS is a hollow shaft nut driver built for trade professionals who need reliable fastener control in tight quarters. The 3/16 inch drive size handles small fasteners commonly found in HVAC equipment, electrical panels, and control boards. The hollow shaft design allows the tool to pass over threaded rod or long bolts without bottoming out, extending reach on deep-set fasteners. At 8 inches overall length with a 4 inch blade, it gives technicians the clearance and leverage needed for confined service work. The ergonomic handle reduces hand fatigue during repetitive tasks on the job site.

This nut driver is suited for residential and light commercial service work across HVAC, electrical, and related trades. It is a practical daily-use hand tool for technicians driving hex-head sheet metal screws, machine screws, and similar fasteners found in equipment cabinets, disconnect boxes, and access panels. The hollow shaft is especially useful when working with studs or protruding threaded fasteners where a standard closed-shaft driver would not seat properly.

Key Features

• 3/16 inch drive size for small hex fasteners common in HVAC and electrical applications
• Hollow shaft passes over threaded rod and long bolt ends
• 8 inch overall length with 4 inch blade provides reach in confined spaces
• Ergonomic handle designed to reduce fatigue during extended use
• Meets ANSI Spec B107.12
• Lifetime warranty coverage

Compatibility

Designed as a general-purpose 3/16 inch nut driver suitable for hex fasteners encountered in HVAC equipment service, electrical panel work, and similar trade applications.

Installation Notes

This tool is used by HVAC technicians, electricians, and plumbers for hand-driving hex fasteners during equipment service and installation. Always de-energize electrical equipment and follow lockout/tagout procedures before using hand tools inside live panels or control compartments. Inspect the tool before use and do not apply excessive torque beyond the tool rating to avoid fastener damage.