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3" 1/4" Drive Extension - Sunex Tools

Part #: SU1-1803

The Sunex Tools SU1-1803 3" 1/4" Drive Extension is an essential addition for professional technicians and mechanics requiring reliable reach in confined workspaces. Engineered for durability and precision, this extension piece seamlessly integrates with your existing 1/4-inch drive ratchets and sockets, enabling efficient work on a wide array of automotive and industrial applications. It provides the necessary leverage and access to fasteners that are otherwise out of reach, streamlining tasks and enhancing productivity.

Key Features

  • Professional-Grade Construction: Built from high-strength steel, this extension is designed to withstand the rigors of daily professional use, offering consistent performance and an extended tool life.
  • Optimal 3-Inch Reach: The 3-inch length provides crucial additional clearance, allowing access to fasteners in recessed, tight, or obstructed areas without the need for extensive disassembly.
  • Secure Socket Retention: Features a precise ball detent system to firmly hold sockets and drive tools, preventing accidental disengagement during operation and ensuring a reliable connection.
  • Corrosion Resistance: Finished with a protective coating that resists rust and corrosion, maintaining the tool's appearance and functionality even in demanding workshop environments.
  • Precision Machining: Machined to tight tolerances for positive engagement, minimizing play and ensuring maximum power transfer from your drive tool to the fastener.

Applications

This 1/4-inch drive extension is a versatile tool for various professional settings. It is ideal for automotive maintenance, allowing mechanics to easily reach engine components, spark plugs, dashboard fasteners, and undercarriage bolts in tight engine bays. Beyond vehicle repair, it proves invaluable in industrial maintenance, general assembly, and repair tasks on machinery, appliances, or electronic equipment where recessed fasteners are common. Its compact drive size and extended reach make it particularly suitable for intricate work in challenging spaces.

We have 10 in stock

$5.62

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 474417
  • Shipping Weight: 0.09lbs
  • Manufacturers Part #: SU1-1803
  • Manufactured by: Sunex Tools
  • Also Known As: SUU-1-1803, SU1-1803

This product was added to our catalog on Tuesday 30 June, 2026.

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