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Worlds First 350 ft-lb 1/2-inch Drive Torque Wrench - Astro Pneumatic

Part #: 91350

The Astro Pneumatic 91350 1/2-inch Drive Torque Wrench redefines capability for professional automotive and industrial applications. Recognized as the world's first 350 ft-lb 1/2-inch drive torque wrench, this innovative tool delivers exceptional power and precision within a convenient form factor. It enables technicians to efficiently handle a vast range of torque specifications, reducing the need for cumbersome 3/4-inch drive equipment.

Key Features

  • Expansive Torque Range: Offers a versatile 70-350 ft-lb (95-475 Nm) range, accommodating tasks from standard passenger car lug nuts to demanding high-torque requirements.
  • 1/2-inch Drive Advantage: Eliminates the necessity for investing in and storing additional 3/4-inch drive sockets and attachments, streamlining your toolkit and optimizing workspace.
  • Precision and Reliability: Features a robust 72-tooth head for fine adjustments and a locking micrometer-style adjustment mechanism to ensure consistent, accurate torque settings.
  • Enhanced Leverage: A substantial 31.5-inch overall length provides ample leverage, facilitating the achievement of high torque values with reduced effort.
  • Professional-Grade Accuracy: Engineered for critical applications with an accuracy of +/- 2%, ensuring precise and reliable fastening for vital components.

Applications

This robust torque wrench is an essential tool for professional mechanics, automotive technicians, and industrial maintenance personnel. It is ideally suited for accurately tightening fasteners on:

  • Passenger vehicle lug nuts, suspension components, and engine work.
  • Light truck and SUV chassis, driveline, and wheel assemblies.
  • Heavy-duty equipment and machinery requiring high torque specifications, such as agricultural or construction equipment.
  • Industrial assembly and maintenance tasks where precise torque application is critical.

Specifications

  • Square Drive: 1/2-inch
  • Torque Range: 70-350 ft-lb
  • Resolution: 2 ft-lb
  • Overall Length: 31.5 inches
  • Head Mechanism: 72-tooth
  • Accuracy: +/- 2%
We have 16 in stock Inventory available from other suppliers, prices may be different
List: $277.45 Save: $99.24

$178.21

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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    Astro Pneumatic Homepage
  • Model: 423007
  • Shipping Weight: 7.25lbs
  • UPC: 745227088584
  • Manufacturers Part #: 91350
  • Manufactured by: Astro Pneumatic
  • Also Known As: AST91350, AST-91350, AO91350

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

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