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The IRWIN IR251 is a 9AC locking panel clamp designed to grip and hold sheet metal, panels, and flat stock during fabrication, assembly, and repair work. With a 9-inch overall length, a 7/32-inch throat depth, and a 3/8-inch jaw opening, this clamp provides a secure, adjustable hold on workpieces where consistent clamping force is required. The locking mechanism allows the technician to set and release grip quickly without losing the adjustment. It is a hand tool used by HVAC sheet metal workers, fabricators, and trade professionals who regularly work with panel assemblies.
The IR251 is suited for panel alignment and holding tasks in sheet metal shops, mechanical rooms, and field service environments. It is commonly used when installing duct sections, joining panel seams, or holding thin-gauge metal components in position while fasteners are applied. The 9AC designation indicates the locking panel clamp configuration, which is optimized for flat, parallel surfaces rather than irregular or curved stock.
Designed as an OEM-style replacement or direct addition for use with standard 9AC locking panel clamp applications in sheet metal fabrication and HVAC panel assembly work.
The IR251 is a hand tool requiring no power source or special installation. Sheet metal workers and HVAC fabricators should inspect the locking adjustment screw before each use to confirm proper tension. Wear appropriate hand and eye protection when working with cut or formed sheet metal edges. Do not exceed the rated jaw opening capacity, as overextension can damage the locking mechanism.
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