SATA ST34704SC 1/2" Drive Impact Extension 6"
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- Extension for better reach to more fasteners
- For use with impact drivers
- Ball detent for secure socket retention
- Black oxide finish to resist corrosion
Key Features

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Features & Benefits
6-Inch Length
This extension provides an additional 6 inches of reach, enabling access to fasteners in deep or hard-to-reach areas without sacrificing control or power.
Impact-Grade Steel
Constructed from durable chrome molybdenum steel, it withstands the high torque generated by impact wrenches, ensuring long-term durability and consistent performance.
1/2" Drive Compatibility
Designed for use with any 1/2" drive impact tools, this extension offers versatility for various heavy-duty applications, including automotive repairs, construction, and maintenance tasks.
Black Phosphate Finish
The corrosion-resistant black phosphate coating protects the extension from rust and wear, making it suitable for use in challenging environments.
Improved Reach
The 6-inch extension allows users to easily access bolts and fasteners in confined or recessed areas, reducing the need for tool repositioning or extra disassembly.
Optimal Torque Transfer
Engineered for impact tools, this extension provides safe and efficient transfer of torque, making it ideal for demanding jobs that require high power output.
Enhanced Durability
Built to withstand the rigors of frequent use with impact tools, the high-strength steel ensures long-lasting reliability, reducing the need for frequent replacements.
Versatile Performance
Its compatibility with a wide range of 1/2" drive impact tools increases operational efficiency, allowing users to switch between tools without changing extensions.
Corrosion Protection
The black phosphate finish not only adds a layer of protection against corrosion but also enhances the tool's appearance, keeping it looking and performing like new for longer.
Key Specifications
Custom Stock Status
In Stock
Weight
0.26 kg
Brands
Sata
Color
Black
Size
6"
Quantity Unit
PCS
Best Seller
No
Model No
ST34704SC
Unit
Individual
Item Type
Impact Extension
Material
Chrome Molybdenum
Length
14.9 cm
Width
4.5 cm
Number of Pieces
1
Height
2.5 cm
Country Of Origin
China
Usage
Automotive repair, Industrial maintenance, Heavy-duty applications requiring extended reach for fasteners in deep or recessed spaces
Distributor
Exclusive Distributor
Products Ranking
Top 25 in Drive Sockets
Product Attachments
Download technical documentation, manuals, and certification documents
ST34704SC_Data_Sheet
Download all product documents in a single ZIP file.
1 PDF
Product Attachments
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ST34704SC_Data_Sheet
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1 PDF
Frequently Asked Questions
What is the length of the SATA ST34704SC impact extension?
The SATA ST34704SC 1/2" Drive Impact Extension has a total length of 6 inches, making it ideal for reaching fasteners in tight or recessed areas.
What materials are used in the construction of this extension?
It is constructed from premium chrome molybdenum steel, ensuring high strength and durability for heavy-duty impact applications.
Is the SATA ST34704SC suitable for use with impact wrenches?
Yes, this extension is specifically designed for use with 1/2" drive impact wrenches and drivers, providing reliable performance under high torque.
Does the SATA ST34704SC have any protective coatings?
The extension features a corrosion-resistant black phosphate finish for enhanced longevity and protection against rust.
What type of fasteners can this extension be used with?
It is compatible with all 1/2" drive sockets, allowing for versatile use with a wide range of fastener sizes and types.
Does the SATA ST34704SC have a locking mechanism?
Yes, it includes a spring-loaded ball detent to securely hold sockets in place during use.
Is this extension suitable for professional use?
Absolutely, the SATA ST34704SC is designed to meet the demands of professional mechanics and technicians.
What is the SATA 1/2\" Drive Impact Extension and what is it used for?
It’s a heavy‑duty 3‑inch extension for 1/2\" drive impact tools that adds reach to fasteners in tight or hard‑to‑access areas, with a ball detent to securely retain sockets during use.
What are the key specifications of this extension?
Specifications: 3-inch length, 1/2\" drive size, made from heat‑treated steel for durability, black oxide finish for corrosion resistance, and a precision machined interface to minimize wobble and improve socket retention.
How does the ball detent work and why is it important?
The ball detent securely snaps sockets onto the extension, preventing them from dropping off during impact use and ensuring a stable, squeak‑free connection.
Is this extension compatible with my tools?
Yes. It’s designed to fit most 1/2\" drive impact wrenches and ratchets that use a standard 1/2\" square drive. Check that your tool accepts standard 1/2\" sockets to ensure full compatibility.
How do I install and use this extension with an impact driver?
Steps: 1) Attach the extension to your impact tool’s drive square. 2) Push a compatible socket onto the extension until the ball detent locks it in place. 3) Use the tool with controlled torque and avoid striking the extension with a hammer. 4) When finished, pull the socket off the extension to remove it.
What are the best use cases for this extension?
Ideal for reaching hard‑to‑access fasteners in engine bays, under dashboards, behind panels, or in crowded assemblies where a standard length socket cannot reach comfortably.
How should I maintain and store this extension to maximize its life?
Wipe clean after use and keep it dry. Store in a dry toolbox or tray to prevent corrosion. If storing long term, a light coat of rust‑preventive oil can help protect the finish.
How does this extension compare to other lengths available on Fepy.com?
This 3‑inch extension offers a balance of reach and rigidity. Shorter extensions (e.g., 2 in) provide less reach but more compact access, while longer options (e.g., 4 in or 6 in) reach deeper areas but can reduce rigidity. Available alternatives include: 2 in: https://fepy.com/product/sata-1-2-drive-impact-extension-2in, 4 in: https://fepy.com/product/sata-1-2-drive-impact-extension-4in, 6 in: https://fepy.com/product/sata-1-2-drive-impact-extension-6in.
Frequently Asked Questions
The SATA ST34704SC 1/2" Drive Impact Extension has a total length of 6 inches, making it ideal for reaching fasteners in tight or recessed areas.
It is constructed from premium chrome molybdenum steel, ensuring high strength and durability for heavy-duty impact applications.
Yes, this extension is specifically designed for use with 1/2" drive impact wrenches and drivers, providing reliable performance under high torque.
The extension features a corrosion-resistant black phosphate finish for enhanced longevity and protection against rust.
It is compatible with all 1/2" drive sockets, allowing for versatile use with a wide range of fastener sizes and types.
Yes, it includes a spring-loaded ball detent to securely hold sockets in place during use.
Absolutely, the SATA ST34704SC is designed to meet the demands of professional mechanics and technicians.
It’s a heavy‑duty 3‑inch extension for 1/2\" drive impact tools that adds reach to fasteners in tight or hard‑to‑access areas, with a ball detent to securely retain sockets during use.
Specifications: 3-inch length, 1/2\" drive size, made from heat‑treated steel for durability, black oxide finish for corrosion resistance, and a precision machined interface to minimize wobble and improve socket retention.
The ball detent securely snaps sockets onto the extension, preventing them from dropping off during impact use and ensuring a stable, squeak‑free connection.
Yes. It’s designed to fit most 1/2\" drive impact wrenches and ratchets that use a standard 1/2\" square drive. Check that your tool accepts standard 1/2\" sockets to ensure full compatibility.
Steps: 1) Attach the extension to your impact tool’s drive square. 2) Push a compatible socket onto the extension until the ball detent locks it in place. 3) Use the tool with controlled torque and avoid striking the extension with a hammer. 4) When finished, pull the socket off the extension to remove it.
Ideal for reaching hard‑to‑access fasteners in engine bays, under dashboards, behind panels, or in crowded assemblies where a standard length socket cannot reach comfortably.
Wipe clean after use and keep it dry. Store in a dry toolbox or tray to prevent corrosion. If storing long term, a light coat of rust‑preventive oil can help protect the finish.
This 3‑inch extension offers a balance of reach and rigidity. Shorter extensions (e.g., 2 in) provide less reach but more compact access, while longer options (e.g., 4 in or 6 in) reach deeper areas but can reduce rigidity. Available alternatives include: 2 in: https://fepy.com/product/sata-1-2-drive-impact-extension-2in, 4 in: https://fepy.com/product/sata-1-2-drive-impact-extension-4in, 6 in: https://fepy.com/product/sata-1-2-drive-impact-extension-6in.
Ratings & Reviews
See what customers are saying
Based on 8 reviews
100%
Would recommend
Rashid Shamsi
Works flawlessly with my impact tools.
Works flawlessly with my impact tools.
Mona Qasimi
Great for working on trucks and SUVs.
Great for working on trucks and SUVs.
Khalifa Mazrouei
Quality finish and feels robust in hand.
Quality finish and feels robust in hand.
Based on 8 reviews
100%
Would recommend
Rashid Shamsi
Works flawlessly with my impact tools.
Works flawlessly with my impact tools.
Mona Qasimi
Great for working on trucks and SUVs.
Great for working on trucks and SUVs.
Khalifa Mazrouei
Quality finish and feels robust in hand.
Quality finish and feels robust in hand.
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AED 100+ Min. order value
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100% secure payment processing
256-bit SSL encryption
Free Delivery
On all orders above AED 200 across UAE
Same Day In Abu Dhabi & Dubai
100% Genuine
Authentic products guaranteed
Authorized Distributor
Free Returns
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No questions Asked policy
