Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
PROTO J4766 Flex-Head Breaker Bar - Flex-Head Breaker Bars
PROTOFlex-Head Breaker Bars

PROTO J4766 Flex-Head Breaker Bar

The PROTO J4766 is a 1/4 in drive flex-head breaker bar with a 5 3/4 in length, featuring a knurled grip. It is constructed from alloy steel with a chrome finish, offering a durable and corrosion-resistant tool for…

SKU 3G-OTH-310509

Also listed as: J 4766 · J-4766

Brand
PROTO
Item
J4766 Flex-Head Breaker Bar
Category
Flex-Head Breaker Bars
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
J4766

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The PROTO J4766 is a 1/4 in drive flex-head breaker bar with a 5 3/4 in length, featuring a knurled grip. It is constructed from alloy steel with a chrome finish, offering a durable and corrosion-resistant tool for industrial applications.

Frequently Asked Questions

What is the PROTO J4766 breaker bar used for?

The PROTO J4766 is a 1/4 in drive flex-head breaker bar used to loosen stubborn fasteners in tight spaces. Its knurled grip and alloy steel construction provide durability and corrosion resistance for industrial maintenance, automotive repair, and assembly applications.

What are the specifications of the PROTO J4766 breaker bar?

The PROTO J4766 has a 1/4 in drive, 5 3/4 in length, flex head, and knurled grip. It is made of alloy steel with a chrome finish. The manufacturer part number is J4766. These specs ensure a compact, corrosion-resistant tool for high-torque loosening.

Where to buy the PROTO J4766 breaker bar worldwide?

3G Electric supplies the PROTO J4766 breaker bar worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this alloy steel, chrome-finished tool to your facility. Contact us for availability and lead time.

How to maintain the PROTO J4766 breaker bar?

To maintain the PROTO J4766, clean the chrome finish with a dry cloth after use to prevent corrosion. Store in a dry environment. Periodically check the flex-head pivot for smooth movement and apply light oil if needed. Avoid using as a hammer to preserve the alloy steel.

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 flex-head breaker bars. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Related products

More from PROTO

View all PROTO parts →
This flex-head breaker bar features a 3/8 in drive and 8 1/2 in length, constructed from alloy steel with a black oxide finish. The knurled grip provides secure handling. Used for loosening or tightening fasteners in confined spaces where a flex-head design offers improved access
PROTO
This flex-head breaker bar features a 3/8 in drive and 8 1/2 in length, constructed from alloy steel with a black oxide finish. The knurled grip provides secure handling. Used for loosening or tightening fasteners in confined spaces where a flex-head design offers improved access
This flex-head breaker bar features a 1-inch drive and 27 1/4-inch overall length, constructed from alloy steel with a chrome finish. The knurled grip provides secure handling during high-torque applications. Its flex head allows access to fasteners in confined spaces, suitable for heavy-duty loosening and tightening tasks
PROTO
This flex-head breaker bar features a 1-inch drive and 27 1/4-inch overall length, constructed from alloy steel with a chrome finish. The knurled grip provides secure handling during high-torque applications. Its flex head allows access to fasteners in confined spaces, suitable for heavy-duty loosening and tightening tasks
The PROTO J5466 is a flex-head breaker bar with a 1/2 in drive and 10 1/2 in length, constructed from alloy steel with a chrome finish. It includes a knurled grip for improved handling. This tool is used for loosening stubborn fasteners in automotive, industrial, and heavy equipment applications
PROTO
The PROTO J5466 is a flex-head breaker bar with a 1/2 in drive and 10 1/2 in length, constructed from alloy steel with a chrome finish. It includes a knurled grip for improved handling. This tool is used for loosening stubborn fasteners in automotive, industrial, and heavy equipment applications
Alloy steel flex-head breaker bar with chrome finish. 3/8 in drive, 12 in length, knurled handle for improved grip. Used for loosening stubborn fasteners in automotive, industrial, and heavy equipment applications
PROTO
Alloy steel flex-head breaker bar with chrome finish. 3/8 in drive, 12 in length, knurled handle for improved grip. Used for loosening stubborn fasteners in automotive, industrial, and heavy equipment applications
This flex-head breaker bar from PROTO features a 3/4 in drive and a 20 in length. The knurled grip provides secure handling, while the alloy steel construction with black oxide finish offers corrosion resistance. The flex-head design allows access in confined spaces for loosening high-torque fasteners
PROTO
This flex-head breaker bar from PROTO features a 3/4 in drive and a 20 in length. The knurled grip provides secure handling, while the alloy steel construction with black oxide finish offers corrosion resistance. The flex-head design allows access in confined spaces for loosening high-torque fasteners
This flex-head breaker bar from PROTO features a 1/2-inch drive and 18 1/4-inch length, constructed from alloy steel with a chrome finish. The knurled grip provides secure handling, while the flex head allows access in confined spaces. Suitable for loosening or tightening stubborn fasteners in automotive, industrial, and mechanical applications
PROTO
This flex-head breaker bar from PROTO features a 1/2-inch drive and 18 1/4-inch length, constructed from alloy steel with a chrome finish. The knurled grip provides secure handling, while the flex head allows access in confined spaces. Suitable for loosening or tightening stubborn fasteners in automotive, industrial, and mechanical applications
This flex-head breaker bar features a 1/2 in drive and 15 1/4 in length for high-torque loosening of fasteners. The knurled grip provides secure handling, while the alloy steel construction with chrome finish resists corrosion. Suitable for industrial maintenance and automotive repair applications
PROTO
This flex-head breaker bar features a 1/2 in drive and 15 1/4 in length for high-torque loosening of fasteners. The knurled grip provides secure handling, while the alloy steel construction with chrome finish resists corrosion. Suitable for industrial maintenance and automotive repair applications
This flex-head breaker bar features a 1/2 in drive and 24 in length, constructed from alloy steel with a chrome finish. The knurled grip provides improved handling. Designed for high-torque applications, the flex-head allows access in confined spaces
PROTO
This flex-head breaker bar features a 1/2 in drive and 24 in length, constructed from alloy steel with a chrome finish. The knurled grip provides improved handling. Designed for high-torque applications, the flex-head allows access in confined spaces