GearWRENCH tongue and groove pliers with black and orange rubberized handles and serrated jaws; slip-joint design allows adjustable grip for mechanical and plumbing tasks.
Adjustable groove joint pliers with black and yellow handles and visible ON/OFF button near pivot; designed for versatile gripping with ergonomic comfort.
Promotional image of GEARWRENCH PITBULL Auto-Bite pliers highlighting ergonomic grips, auto-bite lever, slim head design, and K9™ jaws for angled grip and improved access.
Instructional graphic showing four steps to operate Auto-Bite pliers: engage lever, adjust jaws, squeeze handles, and disengage lever for release
Retail packaging of GEARWRENCH Auto-Bite 8-inch pliers with feature callouts including one-handed operation, 2X gripping power, tether readiness, and jaw capacity of 1.5 inches.
GearWRENCH tongue and groove pliers with black and orange rubberized handles and serrated jaws; slip-joint design allows adjustable grip for mechanical and plumbing tasks.
Illustration of K9 jaw design gripping a pipe at a 35-degree angle; emphasizes angled grip capability for secure hold.
Graphic showing slim jaws of a tool with arrows pointing to increased access area; highlights 40% greater access in tight spaces.
Illustration of Grip Zone handles on a tool gripping a pipe; emphasizes non-marring grip for secure hold without surface damage.
GearWRENCH tongue and groove pliers with black and orange rubberized handles and serrated jaws; slip-joint design allows adjustable grip for mechanical and plumbing tasks.
Adjustable groove joint pliers with black and yellow handles and visible ON/OFF button near pivot; designed for versatile gripping with ergonomic comfort.
Promotional image of GEARWRENCH PITBULL Auto-Bite pliers highlighting ergonomic grips, auto-bite lever, slim head design, and K9™ jaws for angled grip and improved access.
Instructional graphic showing four steps to operate Auto-Bite pliers: engage lever, adjust jaws, squeeze handles, and disengage lever for release
Retail packaging of GEARWRENCH Auto-Bite 8-inch pliers with feature callouts including one-handed operation, 2X gripping power, tether readiness, and jaw capacity of 1.5 inches.
GearWRENCH tongue and groove pliers with black and orange rubberized handles and serrated jaws; slip-joint design allows adjustable grip for mechanical and plumbing tasks.
Illustration of K9 jaw design gripping a pipe at a 35-degree angle; emphasizes angled grip capability for secure hold.
Graphic showing slim jaws of a tool with arrows pointing to increased access area; highlights 40% greater access in tight spaces.
Illustration of Grip Zone handles on a tool gripping a pipe; emphasizes non-marring grip for secure hold without surface damage.
GEARWRENCH

GearWrench Tongue and Groove Pliers 82591C 8 Inch PITBULL Auto Bite Hand Plier Tool (Alloy Steel Twenty Position Dual Material Grips Pipe Fastening)

In stock
SKU: 82591C
$12.99 USD

Description

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GearWrench 82591C 8-Inch PITBULL™ Auto-Bite™ V-Jaw Tongue & Groove Pliers

The GearWrench 82591C 8-inch PITBULL™ Auto-Bite™ tongue and groove pliers grip, hold, and turn round pipes, hex nuts, and mechanical hardware up to a wide 1.85-inch jaw capacity. Forged from high-grade alloy steel with a full polished corrosion-resistant finish, these heavy-duty multi-position water pump pliers feature an innovative Auto-Bite™ lever that enables automatic jaw adjustment with a single squeeze for rapid one-handed positioning. Outfitted with aggressive K9™ angled teeth on a self-locking V-jaw profile ensuring non-slip contact at extreme 35-degree angles, 20 distinct adjustment positions, an integrated Pinch-Stop safety mechanism, Grip Zone™ dual-material cushion handles, and an OSHA-compliant tether attachment point, it equips automotive technicians, professional plumbers, and industrial maintenance experts with superior gripping torque and fatigue-free operational control.

Best Used For:

  • Commercial Plumbing and Pipefitting Maintenance: Adjusting rapidly to varying pipe diameters to grip, tighten, or break loose copper unions, galvanized water lines, and brass fittings.
  • Automotive Chassis and Suspension Servicing: Clamping seized steering tie-rod sleeves, holding round shock absorber shafts, and turning stubborn underbody fasteners in confined bays.
  • Industrial Machinery MRO Operations: Securing rounded or rusted machine bolts, pneumatic lines, and rigid electrical conduit couplings at awkward off-axis angles.

Key Performance & Safety Features

  • Auto-Bite™ One-Handed Adjustment: Integrated spring-loaded lever enables automatic jaw sizing with a single squeeze for fast, secure fastener engagement.
  • Advanced K9™ Angled Teeth: Aggressive directional tooth geometry bites deeply into metallic surfaces to maintain a rock-solid hold at severe 35-degree approaches.
  • 20 Precision Jaw Positions: Expanded multi-slot tongue and groove adjustment offers fine-tuned sizing control and an optimized handle span for high leverage.
  • Self-Locking V-Jaw Profile: Precision-milled V-groove jaws provide multi-point gripping contact on round, square, and hex fastener profiles to prevent slipping.
  • Integrated Anti-Pinch Safety Stop: Built-in handle stop prevents the grips from closing completely together, protecting palms and fingers from painful pinching.
  • Tether-Ready Ergonomic Grips: Solvent-resistant Grip Zone™ dual-material handles feature a built-in lanyard anchor point for certified drop prevention when working at height.

What's Included

  • (1) GearWrench 8-Inch PITBULL™ Auto-Bite™ V-Jaw Tongue and Groove Pliers (Model 82591C)

Technical Specifications

Manufacturer Brand GearWrench (Apex Tool Group)
Model Part Number 82591C
Product Line Family PITBULL™ Auto-Bite™ Series
Plier Tool Type Tongue & Groove Water Pump Pliers
Jaw Geometry Style Self-Locking V-Jaw with K9™ Angled Teeth
Maximum Jaw Opening Capacity 1.850 Inches (46.99 mm)
Number of Adjustment Positions 20 Precision Multi-Position Slots
Overall Tool Length 8.70 Inches (220.98 mm)
Jaw Dimensions 1.00 in. Width x 1.00 in. Length x 0.28 in. Thickness
Structural Material Drop-Forged High-Strength Alloy Tool Steel
Protective Surface Finish Corrosion-Resistant Full Polish Chrome Coating
Handle Material & Safety Grip Zone™ Dual-Material Cushion with Pinch-Stop
Fall Protection Integration Tether-Ready Lanyard Anchor Eyelet
Industry Standard Compliance Meets or Exceeds ASME B107.23 Specifications
Total Tool Net Weight 0.600 lbs (9.60 oz / 0.272 kg)
Universal Product Code (UPC) 099575825910
Suitable for material type Galvanized Steel Pipe, Copper Tubing, Hex Nuts, & Rods

Pro-Tip: Engage the Auto-Bite™ lever by pressing the plier handles against the pipe wall to let the jaw snap automatically to the correct diameter, saving valuable time during high-frequency repetitive plumbing adjustments.