The IRWIN 2021406N is a 6-Inch XP Clamp/Spreader. The 6-Inch XP Clamp/Spreader features a Power Lock System which enables the clamp to provide traditional bar clamp strength, the Forward Pressure Trigger provides one-handed convenience and speed, Die Cast Plate increases durability that protects power tabs, and the I-Beam Bar supports increased pressure without bowing or twisting. Applies up to 550 lbs of pressure. Great for Cabinet Makers, Furniture Restorers, Fine Woodworkers, and General Construction. Features: * Power Lock System * Forward Pressure Trigger * Die Cast Plate * I-Beam Bar * Applies up to 550lbs of Pressure What"s In the Box: * IRWIN 2021406N 6-Inch XP Clamp/Spreader