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PROTO Open End Wrench: Alloy Steel, Chrome, 11 mm Head Size, 5 in Overall Lg - Metric, Double End, Open End Wrenches
PROTOMetric, Double End, Open End Wrenches

PROTO Open End Wrench: Alloy Steel, Chrome, 11 mm Head Size, 5 in Overall Lg

The PROTO Open End Wrench is a metric, double-end, open-end wrench made from alloy steel with a chrome finish. It features an 11 mm head size and a 5-inch overall length, with the manufacturer part number J3111M.

SKU 3G-OTH-296098

Brand
PROTO
Item
Open End Wrench: Alloy Steel, Chrome, 11 mm Head Size, 5 in Overall Lg
Category
Metric, Double End, Open End Wrenches
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Technical Specifications

PROTO
Manufacturer Part Number
J3111M
Type
Chrome, Std
Overall Lg
5 in
Head Size
11 mm
View Full Spec Sheet

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Open End Wrench is a metric, double-end, open-end wrench made from alloy steel with a chrome finish. It features an 11 mm head size and a 5-inch overall length, with the manufacturer part number J3111M.

Frequently Asked Questions

What is the PROTO J3111M open end wrench used for?

The PROTO J3111M open end wrench is used for tightening or loosening nuts and bolts in metric applications. Its 11 mm head size and 5-inch length make it suitable for automotive repair, machinery maintenance, and general industrial assembly where a compact, double-end wrench is needed.

What are the specifications of the PROTO J3111M wrench?

The PROTO J3111M is a metric, double-end, open end wrench made from alloy steel with a chrome finish. It has an 11 mm head size and a 5-inch overall length. The manufacturer part number is J3111M, and it is classified as a standard (Std) type wrench.

Where to buy the PROTO J3111M wrench worldwide?

You can source the PROTO J3111M wrench worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply PROTO tools to customers across multiple industries.

How to select the right PROTO open end wrench size?

To select the right PROTO open end wrench, match the head size to the nut or bolt dimension. For metric fasteners, use a wrench with the same size marking, such as the 11 mm J3111M. Ensure the overall length provides adequate leverage for the application. PROTO alloy steel construction with chrome finish offers durability and corrosion resistance.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO Products

3G Electric supplies PROTO metric, double end, open end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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