Proto JSBV3236 Double End Box Wrench 1 X 1-1/8 in 12 Pt

Product Description

The PROTO JSBV3236 is a double-end box wrench designed for high-torque fastener work in mechanical, industrial, and trade service environments. Built from steel with a chrome finish, it features 12-point box ends sized at 1 inch and 1-1/8 inches. The 12-point configuration allows for tighter swing arcs in confined spaces, making it practical for equipment rooms, mechanical chases, and service bays where clearance is limited. Licensed mechanics, pipefitters, HVAC technicians, and industrial maintenance trades reach for this style of wrench when working large-diameter fasteners on flanges, structural connections, and heavy equipment assemblies. At 1.5 pounds, it offers substantial heft suited to the fastener sizes it drives.

The JSBV3236 fits into general mechanical and industrial service applications where large SAE fasteners are common. The 1-inch and 1-1/8-inch ends cover fastener sizes frequently found on HVAC equipment frames, piping flanges, compressor mounts, and structural hardware. The reversing feature and double-end layout reduce the number of tools a technician needs to carry for adjacent fastener sizes. This wrench is appropriate for both residential and commercial service work wherever large SAE hex fasteners are encountered.

Key Features

• Double-end design with 1-inch and 1-1/8-inch openings in a single tool
• 12-point box ends allow engagement in tighter swing arcs than 6-point alternatives
• Reversing capability adds versatility without changing tools
• Steel construction with chrome finish for corrosion resistance and durability
• Lifetime warranty from the manufacturer

Compatibility

Designed for use with SAE hex fasteners at 1 inch and 1-1/8 inches across mechanical, HVAC, plumbing, and industrial service applications.

Installation Notes

This wrench is used by licensed mechanical, HVAC, and industrial trades for fastener removal and installation on large-diameter hardware. Always ensure the box end is fully seated on the fastener before applying torque to prevent rounding. De-energize and lock out equipment per applicable safety procedures before beginning any mechanical service work. Inspect the wrench for cracks or deformation before each use and do not use cheater bars or extensions not rated for the tool.