GearWrench Tool Set 81002 13 Piece Bolt Biter Extraction Gearpack (SAE Metric Auto-Bite Pliers Bi Directional Sockets Impact Screwdriver S2 Steel)
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GEARWRENCH 81002 Bolt Biter 13-Piece Extraction Gearpack Tool Set
The GEARWRENCH 81002 Bolt Biter 13-Piece Extraction Gearpack Tool Set is an industrial fastener service collection engineered for removing and tightening rounded, frozen, or rusted bolts, studs, and stripped screws across automotive repair bays and heavy machinery maintenance. Featuring bi-directional deep extraction sockets constructed from chrome molybdenum alloy steel (Cr-Mo), this dual-sized SAE and metric kit delivers up to 5 times greater torque output and 10 times longer impact life. Outfitted with an Auto-Bite tongue and groove plier for one-handed jaw adjustment, an impact screwdriver utilizing high-strength S2 tool steel bits, and tapered socket entry throats, this 13-piece set connects directly to impact wrenches, ratchets, and hand drivers.
Best Used For:
- Automotive Chassis & Exhaust Extraction: Removing rusted exhaust manifold studs and rounded suspension bolts using bi-directional extraction sockets.
- Heavy Machinery Maintenance: Gripping smooth pipe nipples and seized fittings one-handed using the Auto-Bite tongue and groove plier.
- Stripped Screw & Fastener Demolition: Breaking loose stubborn, corroded, or frozen machine screws using the manual impact driver and S2 steel bits.
Key Performance & Safety Features
- Patented Bi-Directional Socket Flutes: Gripping geometry engages damaged fasteners securely for both removal and re-tightening operations.
- Auto-Bite Squeeze Adjustment Plier: Automatic lever mechanism adjusts plier jaw opening instantly upon handle squeeze for single-handed operation.
- High-Impact S2 Tool Steel Screwdriver Bits: Precision-machined insert bits withstand heavy manual impact strikes without shattering or stripping screw heads.
- Dual-Sized SAE & Metric Socket Geometry: Socket profiles engage both fractional inch and metric equivalent bolt dimensions including minus sizes.
- Tapered Entry Socket Throat Chamfer: Tapered walls slide easily over mushroomed, distorted, or heavily rusted fastener heads.
- Combination Square Drive & External Hex Base: Sockets feature internal square drives for impact guns alongside external hex bases for wrench turning.
What's Included
- (8) Bolt Biter Deep Extraction Sockets (SAE: 1/2 in., 9/16 in., 5/8 in., 11/16 in., 3/4 in., 13/16 in., 7/8 in., 15/16 in.)
- (1) Auto-Bite Tongue & Groove Plier
- (1) Manual Impact Screwdriver with Ergonomic Handle
- (3) High-Grade S2 Tool Steel Screwdriver Bits / Drive Adapters
Technical Specifications
| Brand / Manufacturer | GEARWRENCH |
| Model / Part Number | 81002 |
| Product Line / Family | Bolt Biter Gearpack Series |
| Total Component Piece Count | 13 Pieces |
| Measurement Standard Sizing | Dual SAE / Metric (1/2 in. to 15/16 in. / Equivalent Metric) |
| Extraction Socket Material | Chrome Molybdenum Alloy Steel (Cr-Mo) |
| Impact Driver Bit Material | High-Tolerance S2 Tool Steel |
| Plier Adjustment Mechanism | Auto-Bite One-Handed Automatic Lever |
| Socket Drive Connection Options | Internal Square Drive and External Hex Base |
| Extraction Torque Performance | Up to 5X Torque Output and 10X Impact Life vs. Standard Extractors |
| Primary Color Accents | Rawhide Orange / Black Oxide |
Pro-Tip: Strike the back of the manual impact driver firmly with a brass hammer while applying counter-clockwise rotational tension; the downward strike forces the S2 bit deep into frozen screw recesses while snapping rusted threads loose.
