SKU: 71983527735

GEARWRENCH 86190 Bolt Biter 5 Piece SAE Wrench Insert Set for Damaged Fastener Removal Low Profile Extraction Tool Chrome Molybdenum Magnetic 1/4-1/2

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Description

GEARWRENCH 86190 Bolt Biter 5 Piece SAE Wrench Insert Set for Damaged Fastener Removal Low Profile Extraction Tool Chrome Molybdenum Magnetic 1/4-1/2Unstoppable Grip in Tight Spaces: GEARWRENCH Bolt Biter 5 Piece SAE Wrench Insert Set Don't let a rounded or frozen bolt bring your project to a halt. The GEARWRENCH 86190 Bolt Biter SAE Wrench Insert Set is the professional technician's secret weapon for removing heavily damaged fasteners in confined areas where standard extraction sockets simply cannot fit. Featuring a revolutionary bi directional design, these inserts allow you to both loosen and

Unstoppable Grip in Tight Spaces: GEARWRENCH Bolt Biter™ 5-Piece SAE Wrench Insert Set

Don't let a rounded or frozen bolt bring your project to a halt. The GEARWRENCH 86190 Bolt Biter™ SAE Wrench Insert Set is the professional technician's secret weapon for removing heavily damaged fasteners in confined areas where standard extraction sockets simply cannot fit. Featuring a revolutionary bi-directional design, these inserts allow you to both loosen and tighten stripped hardware with ease. At 70% thinner than traditional extraction tools, these ultra-low-profile inserts transform your existing static, ratcheting, or open-end wrenches into high-performance extraction systems. Whether you are working in a cramped engine bay or on industrial machinery, these inserts provide the slimmest and most effective solution on the market.

Crafted from premium Chrome Molybdenum (Cr-Mo) alloy steel with a durable manganese phosphate finish, these inserts are built for industrial strength and long-term corrosion resistance. The innovative tapered entry allows the insert to seat quickly and securely onto fasteners that have lost significant material, while the integrated magnetic retention system ensures a rock-solid fit inside your wrench during high-torque applications. The hex base is compatible with 6-point, 12-point, and spline wrenches, providing unmatched versatility. With high-visibility laser-etched markings for rapid size identification and a convenient injection-molded storage case, this 5-piece set is an essential upgrade for any master mechanic’s toolkit.

Key Features

  • Ultra-Thin Profile: 70% thinner than standard extraction tools for superior access in confined workspaces.
  • Bi-Directional Extraction: Specialized internal geometry allows for both removing or tightening damaged fasteners.
  • Tapered Entry Design: Enables the insert to seat easily and securely on rounded-out or frozen hardware.
  • Magnetic Retention: Built-in magnetic system ensures a secure, non-slip fit inside the wrench during use.
  • Universal Compatibility: Hex base design works seamlessly with 6-point, 12-point, spline, or ratcheting wrenches.
  • Industrial Strength: Forged from Chrome Molybdenum (Cr-Mo) steel for maximum durability and high-torque capacity.
  • High Visibility: Laser-etched size markings provide quick identification in low-light environments.

What's Included

  • (1) 1/4" Bolt Biter™ Wrench Insert
  • (1) 5/16" (8mm) Bolt Biter™ Wrench Insert
  • (1) 3/8" Bolt Biter™ Wrench Insert
  • (1) 7/16" (11mm) Bolt Biter™ Wrench Insert
  • (1) 1/2" Bolt Biter™ Wrench Insert
  • (1) Durable Injection Molded Storage Case

Product Specifications

Brand GEARWRENCH
Model Number 86190
Set Piece Count 5 Pieces
Material Chrome-Molybdenum (Cr-Mo)
Finish Manganese Phosphate
Size Range Min 1/4 in
Size Range Max 1/2 in
Magnetic Yes
Drive Type Bi-Directional Extraction
Length Format Standard (Low Profile)
Warranty Full Lifetime Warranty

Pro-Tip: When using these inserts in extremely tight quarters, pair them with a ratcheting box-end wrench. The combination of the Bolt Biter's bi-directional grip and the ratcheting mechanism’s small swing arc allows you to remove damaged fasteners with minimal clearance that would otherwise require total disassembly of surrounding components.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71983527735

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New York, US
★★★★★ 5
Best Pillow Ever
Size: Queen(Pack of 2)
I am absolutely obsessed with these pillows! They have the perfect balance of firmness and softness, providing amazing support for my head and neck. I've never slept better, and I can honestly say I'd order more in a heartbeat. These pillows are a game-changer for my sleep quality. I highly recommend them to anyone looking for the ultimate comfort.
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Reviewed in the United States on May 30, 2026
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Lowell, US
★★★★★ 5
Worth it!
Size: Queen(Pack of 2)
These pillows are amazing and very soft and comfortable. They came nicely packaged and I let them sit out for just a few hours before using them and that was plenty of time! They come with the cooling cover and fit a standard queen sized pillowcase. The material expands well and does not have any weird smells. 10/10 well worth the price.
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Reviewed in the United States on May 27, 2026
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Bridgette Rose
Port Orchard, US
★★★★★ 5
Miracle pillow
Size: Standard(Pack of 2)
Best pillow I’ve ever had. I have been using this since December 2024 and it still hasn’t gotten flat. It is amazingly comfortable and solves all my neck issues for a side sleeper. My head never gets hot either. I’ve recommended this to my friends and they’ve had success with it as well.
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Reviewed in the United States on May 28, 2026
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Kindle Customer
Phoenix, US
★★★★★ 4
Really wanted to love these
Size: Queen(Pack of 2)
I really wanted to love these but they gave me a stiff neck. I haven't slept with a pillow since buying these. They are firm except where you lay your head. It just deflates there. I expected it to sink in to match the curve of my neck but it was more than I could handle. My head ended up in a valley between the two ends of the pillow. The price was good, zipper worked fine, it looks as advertised and the pillows are good quality. The cooling part works, its just not what I needed.
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Jack Raines
Draper, US
★★★★★ 5
best pillow I have ever bought.
Size: Queen(Pack of 2)
most comfortable pillow I have ever bought. It seems very well put together so I believe that it will last a long time. Very happy with the purchase. I do think the weight of the pillow will surprise many people because while it is quite heavy, it is very firm and extremely comfortable. Great value.
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Reviewed in the United States on May 27, 2026

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