The DongCheng HD071604 10-Inch (220mm) Straight Jaw Locking Plier is engineered for clamping flat stock, sheet metal, square tubing, and parallel surfaces. Unlike curved jaw designs, the straight parallel jaws maximize surface contact across flat profiles, preventing workpieces from twisting or slipping under heavy mechanical force.

Forged from high-grade alloy steel and heat-treated to HRC 42°–48°, the jaws offer high wear resistance and clamping integrity. The tool is protected by a corrosion-resistant nickel-plated finish to endure workshop humidity and welding environments. Equipped with a knurled adjustment screw for fine tension control and a guarded release lever, it allows quick locking and release.

Key Features

• Straight Parallel Jaws: Engineered to provide maximum surface contact on flat plates, square bars, and sheet metal.
• 43±3mm Clamping Capacity: Wide opening handles diverse thicknesses of plates, brackets, and structural steel.
• Induction-Treated Hardness (HRC 42°–48°): Hardened jaws prevent deformation and resist tooth flattening under heavy clamping loads.
• Protective Nickel Plating: Durable anti-corrosion plating shields against rust, spatter, and shop grime.
• Easy Adjustment & Quick Release: Rear knurled screw fine-tunes clamping pressure, paired with a classic trigger release.

Applications

• Clamping sheet metal, steel plates, and flat bars during welding or riveting
• Holding workpieces securely for drilling, grinding, bending, or machining
• Parallel assembly work, cabinetry metal fittings, and fabrication alignments
• Straightening bent metal brackets, automotive body panels, and structural edges
• General heavy mechanical clamping in workshops and industrial plants

Technical Specifications

Size/Model-wise Table