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4 Piece 3/8 Inch Drive Goliath Torque-Saver Impact Extension - Astro Pneumatic

Part #: 78005

The Astro Pneumatic 78005 4-Piece 3/8 Inch Drive Goliath Torque-Saver Impact Extension set is engineered for professional automotive and industrial applications, providing extended reach while protecting fasteners from over-torquing. This set is designed to work seamlessly with high-performance 3/8-inch impact wrenches, delivering efficient and controlled torque transfer to the fastener.

Key Features

  • Torque-Saver Design: Specifically engineered to prevent over-tightening of fasteners, these extensions reduce the risk of damage to bolts and components by flexing once a certain amount of torque is applied.
  • Impact-Ready Construction: Built from robust steel alloy, these extensions are designed to withstand the high-torque demands of impact wrenches in professional workshop environments.
  • Versatile 4-Piece Set: Includes a range of essential lengths—2.5", 5", 10", and 15"—to provide flexible access for various fastening challenges.
  • Optimized Torque Transfer: Goliath extensions are designed to deliver more torque to the fastener compared to conventional extensions, enhancing efficiency in demanding applications.
  • 3/8 Inch Drive: Compatible with standard 3/8-inch drive impact sockets and wrenches, integrating smoothly into existing tool collections.

Applications

This impact extension set is an essential tool for professional mechanics and technicians across automotive, heavy equipment, and industrial sectors. It is particularly valuable for reaching fasteners in confined or recessed areas, such as engine compartments, suspension systems, or complex machinery. The torque-saver design ensures precise fastening, critical for tasks where preventing fastener stripping or component damage is paramount, like during tire rotations or mounting.

Specifications

  • Manufacturer: Astro Pneumatic
  • Model Number: 78005
  • Drive Size: 3/8 Inch
  • Set Includes: 2.5", 5", 10", 15" Impact Extension Bars
  • Construction: Steel
  • Finish: Black Protective Coating
We have 83 in stock Inventory available from other suppliers, prices may be different
List: $64.63 Save: $23.09

$41.54

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 461773
  • Shipping Weight: 3.25lbs
  • UPC: 745227086405
  • Manufacturers Part #: 78005
  • Manufactured by: Astro Pneumatic
  • Also Known As: AST78005, AST-78005, AO78005

This product was added to our catalog on Friday 12 June, 2026.

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