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PROTO Open End Wrench: Alloy Steel, Chrome, 3/8 in Head Size, 4 3/4 in Overall Lg - SAE, Double End, Open End Wrenches
PROTOSAE, Double End, Open End Wrenches

PROTO Open End Wrench: Alloy Steel, Chrome, 3/8 in Head Size, 4 3/4 in Overall Lg

The PROTO J3112 is an SAE double-end open end wrench made from alloy steel with a chrome finish. It features a 3/8 in head size and a 4 3/4 in overall length.

SKU 3G-OTH-284840

Brand
PROTO
Item
Open End Wrench: Alloy Steel, Chrome, 3/8 in Head Size, 4 3/4 in Overall Lg
Category
SAE, Double End, Open End Wrenches
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Technical Specifications

PROTO
Manufacturer Part Number
J3112
Type
Chrome, Std
Overall Lg
4 3/4 in
Head Size
3/8 in
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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO J3112 is an SAE double-end open end wrench made from alloy steel with a chrome finish. It features a 3/8 in head size and a 4 3/4 in overall length.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the PROTO J3112 open end wrench used for?

The PROTO J3112 is a double-end open end wrench used for tightening or loosening SAE fasteners. Its 3/8 in head size and 4 3/4 in overall length make it suitable for automotive, industrial, and mechanical maintenance tasks where access is limited.

What are the specifications of the PROTO J3112 wrench?

The PROTO J3112 is an SAE double-end open end wrench made from alloy steel with a chrome finish. It has a 3/8 in head size and a 4 3/4 in overall length. The manufacturer part number is J3112. It is not a ratcheting or flex-head design.

Where to buy the PROTO J3112 wrench worldwide?

You can source the PROTO J3112 wrench through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to maintain a PROTO open end wrench?

To maintain your PROTO J3112 wrench, clean it after use with a dry cloth to remove grease and debris. Store in a dry environment to prevent corrosion. Avoid using as a hammer or cheater bar, as this can damage the tool and void its integrity.

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 sae, 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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