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20 Piece 3/8 Inch Drive with Outside Hex Nano Impact Torx, Metri - Astro Pneumatic

Part #: 78320

The Astro Pneumatic 78320 20-Piece Nano Impact Bit Socket Set offers professional technicians a versatile and durable solution for specialized fasteners encountered in automotive and industrial applications. This 3/8-inch drive set is engineered for impact use, providing reliable performance with impact wrenches and drivers, and features a compact design for access in confined spaces. It includes a comprehensive selection of Torx, Metric Hex, and Triple Square bits, addressing a wide range of fastening needs.

Key Features

  • Impact-Grade Durability: Constructed from robust chrome-molybdenum steel, these bit sockets are designed to withstand the high torque and stresses of impact tools, ensuring long-lasting performance.
  • Compact "Nano" Profile: The low-profile design of each bit socket allows for enhanced access in tight engine bays, chassis, and machinery where standard-length bit sockets may not fit.
  • Comprehensive Bit Selection: Includes a wide array of Torx, Metric Hex, and Triple Square (XZN) bits, covering common fastener types found in modern vehicles and equipment.
  • Outside Hex for Added Grip: Each bit socket features an outside hex profile, providing an additional option for turning with a wrench when extra leverage is required or in situations with limited clearance for a ratchet.
  • 3/8 Inch Drive Compatibility: Designed for use with standard 3/8-inch drive ratchets, extensions, and impact wrenches, making it a seamless addition to any professional tool kit.

Applications

This specialized bit socket set is essential for professional mechanics and industrial technicians working on a variety of tasks. It is particularly useful for automotive repair, including brake caliper removal, engine component servicing, and interior trim work that often utilizes Torx fasteners. The inclusion of Triple Square (XZN) bits makes this set ideal for servicing European vehicles, which frequently employ these fasteners in drivetrain, axle, and brake systems. Additionally, the Metric Hex bits are invaluable for general machinery maintenance and assembly where metric hex head bolts are prevalent.

Only 5 left in stock - order soon Inventory available from other suppliers, prices may be different
List: $154.85 Save: $62.98

$91.87

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 423009
  • Shipping Weight: 1.7lbs
  • UPC: 745227086269
  • Manufacturers Part #: 78320
  • Manufactured by: Astro Pneumatic
  • Also Known As: AST78320, AO78320, AST-78320, AO78320

This product was added to our catalog on Tuesday 14 April, 2026.

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