C-Clamp 3" x 4-1/2" Deep Throat

This heavy-duty IRWIN C-clamp combines a deep-throat design with ergonomic handling and precision engineering to tackle larger projects with ease. Its 4½-inch throat depth lets you clamp farther into workpieces, while the oversized handle delivers 25% more torque with less hand fatigue. A double-threaded screw minimizes drift and deflection, allowing you to apply up to 50% more clamping force than standard clamps. Whether you’re a woodworker, carpenter, welder or DIY enthusiast, this clamp gives you the reach, pressure and stability you need to work efficiently.

The smooth-acting swivel pad protects delicate surfaces and maintains solid contact, reducing marring and ensuring even pressure distribution. Built from durable metal with a brushed finish, this clamp will withstand frequent use in workshop or jobsite environments.

Key Features

• Deep 4½" throat for extended reach into larger assemblies
• Oversized handle for greater torque and reduced hand fatigue
• Double-threaded screw for faster operation and up to 50% more clamping force
• Swivel pad prevents marring and adapts to uneven surfaces
• Ideal for woodworkers, carpenters, welders, builders and DIY projects

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.