A studio shot of the GearWrench 86187 Bolt Biter 13mm and 1/2-inch impact nut extractor driver featuring a high-torque torsion zone, professional black and yellow industrial finish, and Chrome Molybdenum steel construction for removing damaged fasteners.
A high-detail close-up looking into the internal flutes of the 13mm Bolt Biter nut driver, showcasing the bi-directional tapered entry design that enables both loosening and tightening of stripped or rounded hardware.
An informative product graphic for the Bolt Biter nut driver highlighting its tapered entry, minus and dual-sized socket compatibility, bi-directional design, and 50X longer impact life for industrial applications.
The professional retail hang-tab packaging for the GearWrench 86187 Bolt Biter, identifying it as a 1/4-inch drive compatible 13mm and 1/2-inch impact nut extractor and driver for master technicians.
A technical graphic illustrating the internal Bolt Biting design, demonstrating how the specialized flutes engage and grip the flats of rounded fasteners for a successful, non-slip extraction.
A conceptual diagram demonstrating how Bolt Biter technology is engineered to remove both heavily rusted and severely rounded fasteners that standard sockets and wrenches cannot grip.
A technical performance graphic emphasizing the Chrome Molybdenum (Cr-Mo) alloy steel construction, providing maximum strength and durability for high-torque mechanical impact applications.
An icon highlighting the high-visibility laser-etched markings on the Bolt Biter driver, designed for fast size identification in professional automotive and industrial shop environments.
An action shot showing the GearWrench Bolt Biter nut extractor attached to a cordless impact driver, successfully removing a frozen and corroded fastener from an automotive engine block.
A high-access application shot of the 86187 Bolt Biter being used with a power tool to extract a stripped bolt within a cramped engine bay, showcasing its slim profile and industrial versatility.
A detailed view of the GearWrench 13mm Bolt Biter driver being used with a power impact tool on an industrial component to facilitate the high-torque removal of a rounded nut.
A perspective application shot showing the Bolt Biter nut driver reaching into a complex mechanical assembly to extract a rusted fastener, demonstrating its industrial strength and reach.
A studio shot of the GearWrench 86187 Bolt Biter 13mm and 1/2-inch impact nut extractor driver featuring a high-torque torsion zone, professional black and yellow industrial finish, and Chrome Molybdenum steel construction for removing damaged fasteners.
A high-detail close-up looking into the internal flutes of the 13mm Bolt Biter nut driver, showcasing the bi-directional tapered entry design that enables both loosening and tightening of stripped or rounded hardware.
An informative product graphic for the Bolt Biter nut driver highlighting its tapered entry, minus and dual-sized socket compatibility, bi-directional design, and 50X longer impact life for industrial applications.
The professional retail hang-tab packaging for the GearWrench 86187 Bolt Biter, identifying it as a 1/4-inch drive compatible 13mm and 1/2-inch impact nut extractor and driver for master technicians.
A technical graphic illustrating the internal Bolt Biting design, demonstrating how the specialized flutes engage and grip the flats of rounded fasteners for a successful, non-slip extraction.
A conceptual diagram demonstrating how Bolt Biter technology is engineered to remove both heavily rusted and severely rounded fasteners that standard sockets and wrenches cannot grip.
A technical performance graphic emphasizing the Chrome Molybdenum (Cr-Mo) alloy steel construction, providing maximum strength and durability for high-torque mechanical impact applications.
An icon highlighting the high-visibility laser-etched markings on the Bolt Biter driver, designed for fast size identification in professional automotive and industrial shop environments.
An action shot showing the GearWrench Bolt Biter nut extractor attached to a cordless impact driver, successfully removing a frozen and corroded fastener from an automotive engine block.
A high-access application shot of the 86187 Bolt Biter being used with a power tool to extract a stripped bolt within a cramped engine bay, showcasing its slim profile and industrial versatility.
A detailed view of the GearWrench 13mm Bolt Biter driver being used with a power impact tool on an industrial component to facilitate the high-torque removal of a rounded nut.
A perspective application shot showing the Bolt Biter nut driver reaching into a complex mechanical assembly to extract a rusted fastener, demonstrating its industrial strength and reach.
Gearwrench

GearWrench 86187 Bolt Biter 13mm 1/2 Inch Impact Nut Extractor Driver Bi-Directional Damaged Fastener Removal Tool Chrome Molybdenum Steel Black SAE

In stock
SKU: 86187
$5.99

Description

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Ultimate Grip for Stripped Hardware: GearWrench Bolt Biter™ 13mm / 1/2" Nut Extractor

Eliminate the frustration of rounded, frozen, and rusted hardware with the GearWrench 86187 Bolt Biter™ 13mm (1/2") Nut Extractor and Driver. This revolutionary tool is a must-have for professional mechanics and industrial maintenance technicians who deal with severely damaged fasteners daily. Unlike traditional extractors that cut into the metal and weaken the bolt, Bolt Biter technology utilizes a specialized gripping design that seats safely and securely on the fastener flats. This innovative approach allows the tool to last up to 50x longer than competitive cutting-style extractors, providing you with a reliable, permanent solution for your most difficult extraction tasks.

Forged from premium Chrome Molybdenum (Cr-Mo) alloy steel, the 86187 is impact-ready and features a dedicated torsion zone to withstand the extreme torque of modern cordless impact drivers. Its unique bi-directional design gives you the versatility to both remove and tighten damaged fasteners, making it ideal for precision alignment during teardowns. The tapered entry ensures the socket seats effortlessly, while the minus-size internal geometry provides a tighter bite on hardware that has lost significant material due to corrosion. Finished with a heavy-duty black oxide coating and high-visibility laser markings, this industrial-strength tool is built to perform in the toughest shop environments.

Key Features

  • Bi-Directional Extraction: Specialized design allows for both loosening and tightening of damaged fasteners.
  • 50X Longer Impact Life: Advanced gripping flutes outperform standard extractors that rely on sacrificial cutting.
  • High-Torque Torsion Zone: Engineered to absorb shock and vibration from heavy-duty impact tools.
  • Dual Size Compatibility: Precision engineered to work with both 13mm Metric and 1/2" SAE hardware.
  • Minus-Size Seating: Tapered entry and "minus" sizing provides a rock-solid grip on heavily rounded nuts.
  • Cr-Mo Alloy Steel: Professional-grade construction for maximum strength and tool longevity.
  • Corrosion Resistance: Black oxide finish prevents rust while high-vis laser markings ensure quick tool identification.

What's Included

  • (1) 86187 Bolt Biter™ 13mm [1/2"] Nut Extractor & Driver

Product Specifications

Brand GearWrench
Model Number 86187
Fastener Size 13mm / 1/2 in
Material Chrome-Molybdenum (Cr-Mo)
Finish Black Oxide
Drive Type Extraction / Nut Driver
Overall Length 2.56 in
Impact Ready Yes
Measurement Standard SAE & Metric
Weight 0.088 lbs
Warranty Full Lifetime Warranty
ASME/ANSI Meets or Exceeds Professional Standards

Pro-Tip: When using the Bolt Biter™ on a fastener that is heavily rusted, start with a few quick taps of a hammer to seat the driver fully. This mechanical shock helps break the rust seal and ensures the internal "bite" flutes are engaged as deep as possible, allowing the impact driver to work more efficiently without damaging the remaining head of the bolt.