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PROTO J3112M Metric Double End Open End Wrench, 12 mm, 5 1/4 in Overall Length - Metric, Double End, Open End Wrenches
PROTOMetric, Double End, Open End Wrenches

PROTO J3112M Metric Double End Open End Wrench, 12 mm, 5 1/4 in Overall Length

The PROTO Open End Wrench is a metric, double-end, open-end wrench made from alloy steel with a chrome finish. It features a 12 mm head size and a 5 1/4 inch overall length, with the manufacturer part number J3112M.

SKU 3G-OTH-296103

Brand
PROTO
Item
J3112M Metric Double End Open End Wrench, 12 mm, 5 1/4 in Overall Length
Part Number
J3112M
Category
Metric, Double End, Open End Wrenches
Available to Order
Also known as:J3112MPROTO
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Technical Specifications

PROTO
Manufacturer Part Number
J3112M
Type
Chrome, Std
Overall Lg
5 1/4 in
Head Size
12 mm

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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 a 12 mm head size and a 5 1/4 inch overall length, with the manufacturer part number J3112M.

Frequently Asked Questions

What is the PROTO J3112M open end wrench used for?

The PROTO J3112M is a metric double-end open end wrench used for tightening or loosening 12 mm fasteners in industrial maintenance, assembly, and repair applications across machining, material handling, and other plant operations.

What are the specifications of the PROTO J3112M wrench?

The PROTO J3112M open end wrench is made from alloy steel with a chrome finish. It has a 12 mm head size and a 5 1/4 inch overall length. It is a metric, double-end, standard type wrench.

Where to buy the PROTO J3112M wrench worldwide?

3G Electric supplies the PROTO J3112M open end wrench worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this PROTO part number.

How to select the correct PROTO open end wrench size?

To select the correct PROTO open end wrench, match the head size to the fastener dimension. For the J3112M, use it on 12 mm hex nuts or bolts. Ensure the wrench type (metric) matches your fastener system for proper fit and torque transfer.

Used in

Common applications for PROTO
Industrial maintenance — PROTO J6014CXCERT micrometer torque wrench for tightening fasteners to 50–250 ft-lb with tether capability.
Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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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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Alloy steel construction with satin finish. Double-end open end design for 24 mm and 26 mm hex fasteners. Overall length 11 3/8 inches. Suitable for tightening or loosening metric fasteners in confined spaces
PROTO
Alloy steel construction with satin finish. Double-end open end design for 24 mm and 26 mm hex fasteners. Overall length 11 3/8 inches. Suitable for tightening or loosening metric fasteners in confined spaces

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