Proto J3034 Open End Wrench 5/8 X 11/16 Inch

Product Description

The PROTO J3034 is a double-ended open end wrench sized 5/8 inch by 11/16 inch, designed for hex fastener work in tight and open access situations. Both heads are set at a 15-degree angle to the handle, which allows clearance over obstructions when rotating fasteners in confined spaces. Constructed from steel with a satin finish, the J3034 meets ASME B107.6 and federal specification GGG-W-636E standards. It is a practical, duty-rated hand tool suited for HVAC technicians, plumbers, electricians, pipefitters, and general maintenance trades.

The J3034 is used wherever two common hex fastener sizes need to be driven without a ratchet or socket. The dual-size configuration makes it efficient for equipment service, pipe fitting connections, valve packing nuts, and structural fastener work. The 15-degree head angle is standard for production and service applications where a straight handle would interfere with the work surface.

Key Features

• Double-ended head provides two wrench sizes in one tool: 5/8 inch and 11/16 inch
• 15-degree head angle improves clearance when working near obstructions
• Steel construction for durability under torque loads
• Satin finish reduces glare and resists surface corrosion
• Meets ASME B107.6 and GGG-W-636E specifications
• Lifetime warranty coverage

Compatibility

Designed as a standard double-ended open end wrench for 5/8 inch and 11/16 inch hex fasteners across residential, commercial, and light industrial service applications.

Installation Notes

Use by licensed tradespeople or qualified service technicians working on mechanical, plumbing, or electrical equipment. Always confirm fastener size before applying force to avoid rounding hex corners. Do not use extension bars or cheater pipes on open end wrenches, as this can exceed the tool design load and cause failure. Inspect the wrench jaws before each use for wear or deformation.