DongCheng HD071112 12" Heavy-Duty Pipe Wrench 300mm

The DongCheng HD071112 12-Inch (300mm) Heavy-Duty Straight Pipe Wrench is engineered for plumbing maintenance, industrial pipeline installations, gas fitting, and high-torque mechanical pipe assemblies. Built with a mobile jaw drop-forged from high-grade carbon steel, the induction-hardened, self-cleaning hook and heel teeth provide biting traction on smooth, threaded, and cylindrical metal pipe surfaces.

The wrench features an inactivate anti-rust surface treatment that shields the body against shop chemicals, oils, and workplace moisture. Reinforced with a high-shear solid rivet pivot and a knurled adjustment ring, it maintains jaw tracking under heavy rotational torque. With a maximum clamping capacity of up to 40mm (approx. 1-1/2" pipe), its ductile cast handle provides balanced manual leverage without excessive weight. Packed on a protective hanging paper card for workshop organization.

Key Features

• Drop-Forged High-Carbon Steel Mobile Jaw: Heat-treated hook jaw resists tooth wear, chipping, and deformation under severe torque loads.
• 40mm Maximum Clamping Capacity: Securely grips threaded and black iron pipes, conduit, and round fittings up to 40mm diameter.
• Inactivate Anti-Corrosion Treatment: Specialized surface finish provides protection against rust, oxidation, and plumbing moisture.
• Solid Rivet Reinforcement: High-shear solid rivet pivot assembly ensures structural alignment and prevents jaw wobble.
• Smooth Knurled Adjustment Nut: Heavy-duty threaded collar allows fast, one-handed jaw adjustments and continuous grip sizing.
• Balanced 300mm (12") I-Beam Handle: Delivers mechanical leverage for tight plumbing joints while fitting easily in jobsite toolbags.
• Paper Card Packaging: Shipped mounted on a branded card for easy hanging and display.

Applications

• Industrial pipe fitting, commercial plumbing, and municipal water line installations
• Fastening and loosening galvanized iron, black iron, and carbon steel threaded pipes
• Gas line assemblies, meter fittings, valve maintenance, and HVAC piping
• Pump casing servicing, boiler room infrastructure, and compressor airline work
• Heavy plant maintenance, mechanical fabrication, and site construction utility tasks

Technical Specifications

Size/Model-wise Table