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4mm 1/4" Drive Impact Hex Driver - Grey Pneumatic

Part #: 99046M

The Grey Pneumatic GP99046M Impact Hex Bit Socket is a professional-grade tool engineered for demanding automotive and industrial applications. Designed for use with impact wrenches, this 1/4" square drive socket features a 4mm hex driver, providing the durability and precision required by technicians and mechanics. Its robust construction ensures reliable performance in high-torque environments, making it an essential addition to any professional toolkit.

Key Features

  • Impact-Grade Durability: Constructed from high-strength Chrome-Molybdenum (Chro-Moly) alloy steel, this hex bit socket is heat-treated to withstand the extreme torque and repetitive stress of impact tool use.
  • Enhanced Fastener Engagement: Featuring Grey Pneumatic's "High Torque" Drive geometry, it transfers pressure to the fastener's side walls rather than the corners, significantly increasing strength and torque while reducing the risk of rounding off bolts.
  • Extended Reach: With an overall length of 6 inches (150 mm), this socket provides extended reach, enabling access to fasteners in confined or recessed areas.
  • Corrosion Resistance: The black oxide finish helps protect the socket from corrosion, enhancing its longevity in harsh working conditions.
  • Clear Identification: Both laser etched and roll stamped size markings ensure quick and easy identification of the socket, improving workflow efficiency.
  • Professional Assurance: Backed by a lifetime warranty, reflecting Grey Pneumatic's commitment to quality and professional-grade reliability.

Applications

This 1/4" square drive 4mm hex bit socket is ideal for a wide range of professional tasks in automotive repair, industrial maintenance, and assembly operations. It is commonly used for working on intricate engine components, transmission systems, and various small machinery where 4mm hex fasteners are present. Its ability to access fasteners in tight spaces makes it particularly valuable for electronics assembly, furniture assembly, and general maintenance tasks requiring precision and high torque.

Specifications

  • Manufacturer: Grey Pneumatic
  • Model Number: GP99046M
  • Drive Size: 1/4" Square Drive
  • Hex Driver Size: 4mm
  • Overall Length: 6" (150 mm)
  • Material: Chrome-Molybdenum Alloy Steel
  • Weight: 0.08 lbs
Only 2 left in stock - order soon

$18.96

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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  • Model: 444666
  • Shipping Weight: 0.08lbs
  • UPC: 729440495404
  • Manufacturers Part #: 99046M
  • Manufactured by: Grey Pneumatic
  • Also Known As: GRE99046M, GP99046M

This product was added to our catalog on Sunday 31 May, 2026.

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