Short Description

The Locking Straight Jaw Plier 1642/1642N (250 mm) is an industrial-grade clamping tool designed for maximum contact and grip on flat, square, and hexagonal surfaces, providing a powerful "portable vice" functionality for heavy-duty mechanical work.

Long Description

Forged from high-grade Chrome Vanadium (Cr-V) steel and scientifically heat-treated, the 1642/1642N series is engineered to provide immense clamping force without the risk of jaw deflection. Unlike curved jaw models, the straight jaw profile ensures that the entire tooth surface makes contact with flat workpieces, such as sheet metal, square nuts, or bar stock. This 250-mm (10-inch) tool features induction-hardened serrated teeth that bite deep into the material to prevent any slippage during high-torque operations. The 1642N variant features further refined jaw alignment for precision industrial tasks.

The tool is equipped with a knurled adjustment screw at the base of the handle, allowing the user to precisely calibrate the jaw opening and pressure. An integrated wire cutter at the base of the jaws adds versatile utility for trimming medium-tensile wires. The over-center locking mechanism provides a secure hold that stays locked until the guarded release trigger is manually activated. Finished with a high-quality nickel plating, the 1642 series is highly resistant to rust, corrosion, and welding spatter, making it a staple in professional fabrication shops.

Why Choose This Product?

Choose the 1642/1642N for tasks that require superior stability on flat surfaces. While curved jaws are better for pipes, the straight jaw design of the 1642 offers the most secure grip for flat-sided fasteners and metal plates. The 10-inch handle provides massive leverage, acting as a force multiplier that allows you to lock onto a workpiece with hundreds of pounds of pressure. It is the definitive choice for welders, sheet metal workers, and mechanics who need a reliable, high-strength locking tool that won't round off square edges.

Special Technical Specifications

• Material: Forged Chrome Vanadium (Cr-V) Steel, induction-hardened
• Length: 250 mm (10 inches)
• Weight: Approx. 510 g
• Jaw Type: Straight jaws with integrated wire cutter
• Locking Mechanism: Adjustable over-center toggle with guarded release
• Finish: Professional Nickel-plated finish

Key Features

• Straight jaw profile optimized for maximum contact on flat and square workpieces
• Large 250-mm frame for superior leverage and clamping power
• Induction-hardened teeth for long-term sharpness and non-slip performance
• Guarded release trigger for safe, one-handed unlocking

Applications

• Metal Fabrication – clamping flat plates and square tubing for welding
• Automotive – gripping and turning large hex-head bolts and nuts
• Construction – holding and pulling flat-sided metal components
• General Maintenance – acting as a temporary vice for drilling or grinding

Maintenance Instructions

• Apply a thin layer of light machine oil to the pivot points and adjustment screw periodically
• Clean the straight jaw teeth with a wire brush to remove debris and maintain a flat grip
• Store in a dry location to preserve the nickel-plated anti-corrosive finish