8" Locking Sheet Metal Clamp Pliers

Palmgren locking pliers are designed for repeatable gripping force across fabrication, repair, maintenance, and assembly operations. The hardened steel construction provides durability under repeated shop use while the adjustable locking mechanism allows controlled pressure across varying material types and thicknesses.

The Palmgren 70800 is a specialized locking clamp engineered for the unique demands of sheet metal work. Unlike standard C-clamps, its wide flat jaws are designed to grip thin sheet metal firmly and evenly, preventing distortion, buckling, or warping during welding, forming, and assembly operations.

The adjustable lead screw design includes a 1/4" hex key drive that allows operators to fine-tune jaw pressure for improved control during gripping, turning, clamping, and holding operations. Once adjusted, the locking mechanism maintains secure contact throughout demanding tasks.

Manufactured with hardened steel components for long service life, these locking pliers are engineered to withstand repeated use in fabrication, automotive, maintenance, and general shop applications. Large diameter rivets provide secure joints delivering durable and robust pliers.

Jaw geometry is designed to improve contact across flat, curved, and irregular surfaces while maintaining controlled gripping pressure. This helps reduce slipping during high-torque operations.

Wide Flat Jaws for Sheet Metal Grip
The flat jaw design distributes clamping force across a wider surface area, preventing the localized stress that causes thin sheet metal to buckle or deform under clamping pressure. This is critical for maintaining flatness and alignment in welded assemblies.

8-Inch Jaw Capacity
The 8-inch opening accommodates a variety of panel sizes and configurations, giving fabricators the reach needed for automotive body panels, HVAC ductwork, and structural sheet metal.

Precision Locking Mechanism
Set your clamping pressure accurately and lock it in place. The clamp holds steady through tack welding and grinding without shifting, ensuring consistent joint alignment throughout the assembly process.

One-Hand Release Trigger
Reposition the clamp quickly between weld points with the one-hand release trigger. Faster repositioning means more efficient workflow and less fatigue during long fabrication sessions.

Hardened Steel Construction
Built to withstand the sparks, heat, and mechanical stress of active fabrication environments, the hardened steel body provides long service life even under demanding conditions.

• Automotive body panel fabrication and repair
• HVAC ductwork assembly and installation
• Structural sheet metal welding and tack welding
• Metal enclosure and box fabrication
• Sign making and light gauge steel framing
• Equipment service operations
• Gripping and turning irregular materials
• Assembly and positioning work

Standard C-clamps concentrate force at a single point, which can buckle or dent thin sheet metal. The 70800's flat wide jaws spread that load across a broader area, protecting the integrity of your material while maintaining the strong hold needed for welding and forming operations.

Q: Why is a sheet metal clamp different from a standard C-clamp?
A: Sheet metal clamps feature wider jaws and flatter jaw faces to provide stable, parallel contact on flat stock. This prevents warping and ensures even pressure distribution.

Q: Can I use a standard C-clamp for sheet metal work?
A: Standard C-clamps can work, but sheet metal clamps are optimized for wider jaw surfaces that prevent deformation of thin material.

Q: What's the maximum jaw opening on the 8" sheet metal clamp?
A: The maximum jaw opening is 1-1/2 inches, allowing you to clamp sheet metal parts up to 8 inches across.

Q: Is this clamp suitable for hole drilling in sheet metal?
A: Yes. The stable, parallel jaw contact keeps the workpiece from shifting while you drill, ensuring accurate hole placement.

Q: Can I use the sheet metal clamp for light bending or forming?
A: Yes. The stable clamping and controlled pressure adjustment make it suitable for light metal forming and bending operations.