A studio product view of the GEARWRENCH 86179 Bolt Biter 3/8-inch nut extractor and driver. The image shows the high-torque socket head with internal gripping flutes, a yellow and black shank with the GEARWRENCH logo, and a 1/4-inch hex base for impact driver compatibility.
A side profile of the Bolt Biter extraction tool showcasing the Chrome Molybdenum (Cr-Mo) construction. The black oxide finish on the 3/8-inch socket head is highlighted alongside the laser-etched size markings and the specialized torsion zone.
A technical infographic of the GEARWRENCH Bolt Biter nut driver with feature callouts. Labels highlight the tapered entry, minus and dual-sized socket compatibility, bi-directional design for loosening or tightening, and the torsion zone providing 50x longer life.
The GEARWRENCH 86179 3/8-inch nut extractor in its original retail hang-tag packaging. The packaging highlights the Bolt Biter branding and specifies that the tool is an impact-ready nut extractor and driver designed for 1/4-inch hex shank power tools.
A competitive comparison chart titled Bolt Biter Nut Drivers: How GEARWRENCH Wins. The table compares Bolt Biter against Competitor A and Competitor B, showing that GEARWRENCH is the best overall by meeting all performance and usability criteria.
An illustrative graphic showing the Bolt Biting Design. The top-down view demonstrates how the internal flutes of the GEARWRENCH extractor specifically grip the flat surfaces of rounded fasteners to provide maximum torque without slipping.
A marketing graphic titled Removes Rusted and Rounded Fasteners. The illustration shows a side-by-side comparison of a heavily corroded rusted nut and a stripped rounded-off nut, emphasizing the tool's ability to extract damaged hardware.
A high-visibility marking infographic for the GEARWRENCH Bolt Biter. The graphic focuses on the 3/8 size etched within a hexagon on the side of the socket, illustrating the easy identification system for professional technicians.
A material quality graphic featuring the text Chrome Molybdenum Strength and Durability. The image uses hexagonal icons for CR and MO to highlight the premium alloy steel construction required for high-torque impact applications.
An action shot of the GEARWRENCH 86179 Bolt Biter being used with a cordless impact driver. A technician is shown extracting a damaged, greasy bolt from an industrial machine, demonstrating the tool's effectiveness in real-world maintenance settings.
Action photograph showing the Bolt Biter nut driver extracting a rusted fastener from an automotive engine block. The image highlights the 1/4-inch hex shank connected to a cordless impact tool, emphasizing the device's durability in greasy, high-torque environments.
Action shot featuring the GEARWRENCH 3/8-inch nut extractor removing a corroded bolt from a vehicle's air intake housing. The photograph demonstrates the tool's slim profile and tapered entry, allowing access to damaged fasteners in tight engine compartments.
Lifestyle action shot of the Bolt Biter extraction tool removing a heavily stripped bolt from a black metal engine cover. The image showcases the bi-directional design as it securely grips the rounded fastener head to provide a successful, non-slip extraction.
A studio product view of the GEARWRENCH 86179 Bolt Biter 3/8-inch nut extractor and driver. The image shows the high-torque socket head with internal gripping flutes, a yellow and black shank with the GEARWRENCH logo, and a 1/4-inch hex base for impact driver compatibility.
A side profile of the Bolt Biter extraction tool showcasing the Chrome Molybdenum (Cr-Mo) construction. The black oxide finish on the 3/8-inch socket head is highlighted alongside the laser-etched size markings and the specialized torsion zone.
A technical infographic of the GEARWRENCH Bolt Biter nut driver with feature callouts. Labels highlight the tapered entry, minus and dual-sized socket compatibility, bi-directional design for loosening or tightening, and the torsion zone providing 50x longer life.
The GEARWRENCH 86179 3/8-inch nut extractor in its original retail hang-tag packaging. The packaging highlights the Bolt Biter branding and specifies that the tool is an impact-ready nut extractor and driver designed for 1/4-inch hex shank power tools.
A competitive comparison chart titled Bolt Biter Nut Drivers: How GEARWRENCH Wins. The table compares Bolt Biter against Competitor A and Competitor B, showing that GEARWRENCH is the best overall by meeting all performance and usability criteria.
An illustrative graphic showing the Bolt Biting Design. The top-down view demonstrates how the internal flutes of the GEARWRENCH extractor specifically grip the flat surfaces of rounded fasteners to provide maximum torque without slipping.
A marketing graphic titled Removes Rusted and Rounded Fasteners. The illustration shows a side-by-side comparison of a heavily corroded rusted nut and a stripped rounded-off nut, emphasizing the tool's ability to extract damaged hardware.
A high-visibility marking infographic for the GEARWRENCH Bolt Biter. The graphic focuses on the 3/8 size etched within a hexagon on the side of the socket, illustrating the easy identification system for professional technicians.
A material quality graphic featuring the text Chrome Molybdenum Strength and Durability. The image uses hexagonal icons for CR and MO to highlight the premium alloy steel construction required for high-torque impact applications.
An action shot of the GEARWRENCH 86179 Bolt Biter being used with a cordless impact driver. A technician is shown extracting a damaged, greasy bolt from an industrial machine, demonstrating the tool's effectiveness in real-world maintenance settings.
Action photograph showing the Bolt Biter nut driver extracting a rusted fastener from an automotive engine block. The image highlights the 1/4-inch hex shank connected to a cordless impact tool, emphasizing the device's durability in greasy, high-torque environments.
Action shot featuring the GEARWRENCH 3/8-inch nut extractor removing a corroded bolt from a vehicle's air intake housing. The photograph demonstrates the tool's slim profile and tapered entry, allowing access to damaged fasteners in tight engine compartments.
Lifestyle action shot of the Bolt Biter extraction tool removing a heavily stripped bolt from a black metal engine cover. The image showcases the bi-directional design as it securely grips the rounded fastener head to provide a successful, non-slip extraction.
GEARWRENCH

GEARWRENCH 86179 Bolt Biter 3/8 Inch Nut Extractor and Driver Impact Ready Bi-Directional Design for Removing Rounded Frozen and Damaged Fasteners SAE

In stock
SKU: 86179
$5.75 USD

Description

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Revolutionary Fastener Extraction: Impact-Ready Bolt Biter™ Nut Driver for Stubborn, Rounded, and Frozen Bolts

The GEARWRENCH 86179 Bolt Biter™ 3/8" Nut Extractor & Driver is the ultimate solution for automotive technicians and industrial maintenance professionals dealing with the frustration of stripped or rusted hardware. Unlike traditional extractors that cut into fasteners and quickly dull, the Bolt Biter™ features a revolutionary gripping design that seats safely on the fastener without damaging the tool's integrity. Engineered to be impact-ready, this driver delivers extreme durability and is capable of gripping fasteners that are up to 90% rounded off, ensuring you never get stuck on a "permanent" bolt again.

Constructed from premium Chrome Molybdenum (Cr-Mo) alloy steel, this tool is built for high-torque applications and longevity, outlasting the competition by up to 50 times. The specialized bi-directional design allows you to not only remove damaged nuts but also tighten them if necessary, providing unmatched versatility on the job. With a tapered entry for easy seating and high-visibility laser-etched markings for rapid identification in a crowded toolbox, the GEARWRENCH Bolt Biter™ series redefines what is possible in fastener extraction technology.

Key Features

  • Bi-Directional Gripping: Specialized design allows for both the removal and tightening of damaged fasteners.
  • 50x Longer Life: Advanced torsion zone and non-cutting grip ensure the tool outlasts traditional extraction sockets.
  • Impact Rated: Engineered for use with high-torque impact drivers and pneumatic tools.
  • Tapered Entry: Seats quickly and easily on frozen or rounded-out nuts without the need for a hammer.
  • Cr-Mo Alloy Steel: Industrial-grade Chrome Molybdenum construction for maximum strength and corrosion resistance.
  • Minus-Size Compatibility: Designed to fit a wide range of fasteners including heavily weathered SAE and Metric sizes.
  • Black Oxide Finish: Provides a durable layer of protection against rust and shop chemicals.

What's Included

  • (1) Bolt Biter™ 3/8" Nut Extractor & Driver (86179)

Specifications

Drive Size 3/8 Inch
Material Chrome Molybdenum Alloy (Cr-Mo)
Finish Black Oxide
Total Length 2.56 Inches
Impact Rated Yes
Fastener Application SAE and Metric
Tool Weight 0.073 lbs
Markings Laser Etched
Manufacturer Part Number 86179
Warranty Lifetime Manufacturer Warranty
UPC / Barcode 099575861796

Pro-Tip: When using the Bolt Biter™ on a fastener that is heavily rusted or undersized due to corrosion, choose the "minus-size" driver that feels tightest. Because these tools grip rather than cut, ensure you apply consistent pressure and let the bi-directional flutes lock onto the fastener's flats for the most efficient extraction.