JointMaster® 90° Angle Locking Clamp – Wide Mouth

Fast, accurate 90° alignment for welding, fabrication, and assembly.
The JointMaster® 90° Angle Locking Clamp is designed to securely hold workpieces at a perfect 90-degree angle, making it ideal for welding frames, boxes, cabinets, and structural assemblies. Its wide-mouth design provides unobstructed access to the weld joint, allowing for easier tacking and finish welding without constantly repositioning the clamp.

Built for speed and precision, the JointMaster® helps improve alignment, reduce setup time, and increase productivity in fabrication shops and production environments.

Why Fabricators Choose the JointMaster®

• Accurate 90° Alignment: Holds workpieces square for consistent welds.
• Wide Mouth Design: Provides excellent access to the weld joint.
• Fast Setup: Speeds up fit-up, tacking, and assembly.
• Versatile Clamping: Can hold three-axis workpieces when paired with Pipe Pliers.

Key Features

• Precision 90° locking clamp
• Wide opening for improved welding access
• Quick-lock mechanism for fast positioning
• Heavy-duty construction for fabrication environments
• Designed for repeatable, accurate part alignment
• Compatible with Pipe Pliers for three-axis clamping applications

Benefits

• Reduce setup time
• Improve weld accuracy and consistency
• Maintain square corners during welding
• Minimize distortion caused by movement during tacking
• Increase fabrication efficiency

Ideal For

• Holding metal at 90° for welding
• Frame fabrication
• Box and enclosure fabrication
• T-joint assembly
• Tacking and alignment work
• General fabrication and repair

Frequently Asked Questions

What is the JointMaster® used for?
It is used to securely hold workpieces at a precise 90° angle during welding and fabrication.

What does the wide-mouth design provide?
The wide opening gives better access to the weld joint, making tacking and finish welding easier.

Can it hold more than two workpieces?
Yes. When used with compatible Pipe Pliers, the clamp can securely hold three-axis workpieces.

Is it suitable for production fabrication?
Yes. Its quick-lock design and durable construction make it ideal for both production and general fabrication work.

What types of projects is it best suited for?
The JointMaster® excels at frame construction, box fabrication, T-joints, fixtures, and any application requiring accurate 90° alignment.