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PROTO Crowfoot Socket Wrench: Alloy Steel, Chrome, 3/8 in Drive Size - Metric Open End Crowfoot Wrenches
PROTOMetric Open End Crowfoot Wrenches

PROTO Crowfoot Socket Wrench: Alloy Steel, Chrome, 3/8 in Drive Size

The PROTO J4911MCF is a metric open end crowfoot wrench made from alloy steel with a chrome finish. It features a 3/8-inch drive size and an 11 mm head size, designed for use with standard ratchets and torque wrenches.

SKU 3G-OTH-315008

Brand
PROTO
Item
Crowfoot Socket Wrench: Alloy Steel, Chrome, 3/8 in Drive Size
Category
Metric Open End Crowfoot Wrenches
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J4911MCF
Type
Chrome
Head Size
11 mm
Drive Size
3/8 in

Technical Documents

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

Product Description

The PROTO J4911MCF is a metric open end crowfoot wrench made from alloy steel with a chrome finish. It features a 3/8-inch drive size and an 11 mm head size, designed for use with standard ratchets and torque wrenches.

Frequently Asked Questions

What is the PROTO J4911MCF crowfoot socket wrench used for?

The PROTO J4911MCF is a metric open end crowfoot wrench used to access fasteners in tight spaces where a standard socket cannot fit. It is commonly applied in automotive, industrial, and mechanical maintenance for torquing or loosening nuts and bolts with a ratchet or torque wrench.

What are the specifications of the PROTO J4911MCF crowfoot wrench?

The PROTO J4911MCF is made from alloy steel with a chrome finish. It has a 3/8-inch drive size and an 11 mm head size. This metric open end crowfoot wrench is designed for use with standard ratchets and torque wrenches, providing reliable access in confined spaces.

Where to buy the PROTO J4911MCF crowfoot wrench worldwide?

You can source the PROTO J4911MCF crowfoot 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 genuine PROTO tools to customers internationally.

How to select the correct crowfoot wrench size for a fastener?

To select the correct crowfoot wrench, match the head size to the fastener's nut or bolt dimension. For the PROTO J4911MCF, the 11 mm head fits an 11 mm fastener. Ensure the drive size (3/8-inch) matches your ratchet or torque wrench. Always verify clearance and torque requirements before use.

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 open end crowfoot wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
PROTO Crowfoot Socket Wrench: Alloy Steel, Chrome, 3/8 in Drive Size, 14 mm Head Size (MPN J4914MCF)
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