9" Locking Welding 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.Large diameter rivets provide secure joints delivering durable and robust pliers.

The Palmgren 70900 9" Locking Welding Clamp is purpose-engineered for metal fabrication and welding environments. Unlike general-purpose clamps, the 70900 is designed to hold workpieces securely at precise angles and positions, maintaining alignment through the heat and mechanical stress of welding, tack welding, and grinding operations.

The adjustable lead screw design comes with 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.

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.

Purpose-Built for Welding
The 70900's design prioritizes the specific demands of welding: secure hold at precise angles, resistance to heat and spatter, and fast repositioning between weld points. Every feature serves the professional welder's workflow.

9-Inch Jaw Capacity
The 9-inch capacity handles a wide range of material thicknesses and workpiece sizes commonly encountered in structural and fabrication welding. From thin sheet metal to heavy plate, the 70900 provides the reach and holding power you need.

Precision Screw Adjustment
Set your clamping pressure accurately with the adjustment screw. Consistent pressure settings reduce rework caused by misalignment or movement during welding.

One-Hand Release Trigger
The quick-release trigger lets you reposition the clamp with one hand, keeping the other free to manage the workpiece or welding torch. This improves efficiency and safety during active welding sequences.

Hardened Steel Construction
Built to withstand weld spatter, radiant heat, and the mechanical stress of professional shop use, the hardened steel body provides long service life in the most demanding fabrication environments.

• Tack welding and full weld fabrication setups
• Holding structural steel angles, channels, and plates
• Assembly fixturing during MIG, TIG, and stick welding
• Holding pipe and tube sections for circumferential welding
• Metal sculpture and artistic fabrication
• Automotive repair and maintenance
• Equipment service operations
• Gripping and turning irregular materials

General-purpose locking pliers and C-clamps can work for occasional welding tasks, but dedicated welding clamps like the 70900 are engineered specifically for the positioning precision, heat resistance, and rapid repositioning that production welding demands. The investment in the right tool reduces rework and increases throughput.

Q: What's the difference between a welding clamp and a standard locking plier?
A: Welding clamps are optimized for heat resistance and fixture positioning. Standard locking pliers are more general-purpose. Welding clamps maintain integrity in high-temperature environments.

Q: Can I use a standard C-clamp for welding?
A: Standard C-clamps can work for some welding fixture applications, but dedicated welding clamps are engineered for heat resistance and reliable fixture positioning.

Q: How do I position the clamp for welding?
A: Set the clamp to secure your workpiece in the desired position. Use the hex-key adjustable lead screw for precise positioning, then lock it in place with the locking nut.

Q: What's the maximum opening on the 9" welding clamp?
A: The maximum opening is 2 inches jaw opening with a 9-inch overall reach, accommodating mid-size fabricated assemblies.

Q: Can I leave the clamp on the workpiece while welding?
A: Yes. The heat-resistant design and robust construction allow the clamp to remain in place during welding. Remove after cooling to prevent distortion.