Name: GearWrench 86074 Bolt Biter 21mm (13/16") 1/2 Inch Drive Damaged Bolt Extraction Socket
Brand: GearWrench
SKU: DRI-SER-241
Price: 15 USD
Availability: InStock
Rating: 4.3 (4 reviews)

Description

GEARWRENCH Bolt Biter 86074 – Remove Stripped 21mm Bolts for $15

The GEARWRENCH Bolt Biter 86074 21mm (13/16") 1/2 inch drive extraction socket is built to remove stripped, rounded-off, and rusted-seized bolts. It is the best-fit tool for auto mechanics, industrial techs, and DIYers dealing with damaged fasteners. Order online today at the $15 sale price — 50% off the $29.99 compare-at price — and save on the most buyer-trusted extraction socket system.

How to Remove a Stripped 21mm Bolt with the Bolt Biter

Seat the tapered entry directly onto the damaged fastener head — no drilling or center-punching needed. The aggressive internal bite grips rounded bolt heads as the socket turns. Drive it with a 1/2 inch impact gun, ratchet, wrench, or pliers using the square drive with hex base.

Specifications

Brand: GEARWRENCH
Model: Bolt Biter 86074
Product Type: Extraction socket
Size: 21mm / 13/16" dual-sized
Drive: 1/2 inch square with hex base

Compatibility

Fits both SAE and metric fasteners via dual sizing
Works with impact guns, ratchets, wrenches, and pliers

Bolt Biter vs Traditional Extractors

Traditional extractors require precise drilling and fragile pilot bits. The Bolt Biter seats on tapered entry, bites damaged heads directly, and survives impact use — solving the top frustrations mechanics reported about old extraction sockets.

Price and Deal Value

Current online price: $15, down from $29.99. Apply coupon code SAVE15 at checkout for an extra 15% off. Orders over $45 ship free; standard shipping is $8. This is the affordable deal on professional bolt extraction.

Features

Removes stripped and rounded 21mm/13/16" bolts without drilling — saving costly shop extraction fees
Dual SAE/metric sizing and 1/2" impact-ready drive replace multiple extractors — one $15 tool does the job of several
50% off at $15 vs $29.99 — with coupon SAVE15 and free shipping over $45 for maximum deal value
Model: Bolt Biter 86074
Best For: Stripped, rounded, and seized fastener removal
Drive Size: 1/2 inch square with hex base
Socket Size: 21mm / 13/16" (dual SAE-metric)
Product Type: Damaged bolt extraction socket
Compatible Tools: Impact gun, ratchet, wrench, pliers
Seller: Driven Fastener Works
MPN: Bolt Biter 86074

Product Details

Bolt Biter vs Traditional Bolt Extractors

Mechanics told GEARWRENCH what they hated about existing extraction sockets — the Bolt Biter 86074 fixes it. No drilling, no fragile pilots, no slipping on rounded heads.

Why Buy at This Price

At $15 (reg. $29.99), the 86074 is the affordable alternative to costly extraction kits and shop fees. Stack coupon SAVE15 for extra savings, and orders over $45 ship free.

Best Use Cases

Stripped lug-adjacent and suspension bolts at 21mm/13/16"
Rounded-off exhaust and bracket fasteners
Seized industrial machinery bolts

Comparison at a Glance

Bolt Biter: tapered entry, impact-ready, dual SAE/metric — $15
Traditional extractors: drilling required, fragile, single-size

Frequently Asked Questions

Where can I buy the GEARWRENCH Bolt Biter 86074 online?

Right here at Driven Fastener Works. Order the 86074 Bolt Biter online for $15 with checkout discounts and coupon savings available.

What is the current price and is there a discount?

Current price is $15, discounted 50% from the $29.99 compare-at price. Apply coupon code SAVE15 at checkout for an additional 15% off.

Will the Bolt Biter remove a rounded-off bolt?

Yes. The aggressive internal bite and tapered entry grip rounded-off, stripped, and rusted bolt heads that standard sockets slip on.

Can I use the Bolt Biter with an impact wrench?

Yes. The square drive with hex base is built for 1/2 inch impact guns, plus ratchets, wrenches, and pliers.

What size bolt does the 86074 Bolt Biter fit?

It fits 21mm metric and 13/16" SAE fasteners — the dual sizing covers both standards with one socket.

Customer Reviews

5.0

a***y

Verified

Saved my alternator bracket bolt

Rounded off a 21mm bolt on the alternator bracket and this thing backed it right out on the first try. Should have bought one years ago.

3.0

n**h

Verified

Works but takes effort

It got my rounded lug-less axle bolt out eventually, but I had to hammer it on good and use a breaker bar with a cheater pipe. Not magic, but it did the job when nothing else would. Knocking off a couple stars because the fit is tight and the teeth chew up the bolt head for good.

5.0

b*****t

Worth every penny

Stripped bolt on my mower deck had me stuck for a week. Borrowed nothing, hammered this socket on, and it came loose with one pull of the impact wrench. The dual SAE/metric fit is handy too since I work on mixed equipment.

4.0

e*****t

Impact ready and tough

Ran this on my half inch impact removing corroded oxygen sensor style fittings and a rusted hitch bolt. No cracking or deforming after a dozen uses so far. My only gripe is it's a single size, so check your fastener before ordering. If it matches, buy it.