Bar clamp Stanley FATMAX L Trigger Clamp

The Stanley FATMAX L Trigger Clamp is a heavy-duty bar clamp engineered for reliable holding power in woodworking, metalworking and general assembly tasks. Constructed from fiberglass-reinforced components with nylon and steel elements, the clamp combines strength with reduced weight. With a maximum opening of 90 cm and a compact profile of 795 mm width and 78 mm depth, it is suitable for larger panels and assemblies where consistent clamping force and quick adjustability are required.

Advantages

This clamp provides strong, even pressure across the workpiece using its robust bar and pressure head. The trigger mechanism enables one-handed operation and rapid, incremental tightening without the need for additional tools. Materials such as fiberglass and steel enhance durability while keeping the overall weight manageable for repeated use. The clamp’s design supports stable alignment and minimizes slippage during glue-ups or fixture work.

Suitable for

• Holding large panels during glue-ups and edge joining
• Securing assemblies for drilling, sanding and routing
• Clamping components in metalworking or fabrication tasks
• Temporary fixturing for cabinetry, furniture and workshop projects

Key specifications

• Maximum opening: 90 cm
• Overall width: 795 mm
• Depth: 78 mm
• Construction materials: fiberglass-reinforced body, nylon components, steel bar and hardware
• Operation: trigger-actuated tightening mechanism for one-handed use
• Clamping style: bar clamp with adjustable sliding jaw and fixed head

How to use

Position the fixed head against one side of the workpiece and slide the adjustable jaw to contact the opposite side. Squeeze the trigger to incrementally tighten the clamp until the desired pressure is reached. Release or reposition the sliding jaw by engaging the release lever or button, then reapply the clamp as needed. For glue-ups, apply even pressure and avoid over-tightening to prevent surface deformation. Clean contact pads and surfaces after use to maintain consistent performance.

Usage recommendations

Use the Stanley FATMAX L Trigger Clamp on flat, supported surfaces and pair clamps across the workpiece when even distribution of pressure is required. Check the clamp’s contact pads and the workpiece finish to prevent marring; add protective pads if necessary. Store the clamp in a dry place and inspect moving parts for wear before extended use.