18 Bar Clamp: The throat depth of this parallel clamp is 3-7/8 inch, jaw width is 1-7/8 inch, ensuring a wide enough surface to clamp your workpieces tight and keep them square and free from movement. Powerful Clamp Pressure: The parallel clamp allows for 90°clamping at up to 1500 lbs of pressure which minimizes the warping and distortion of the work piece. Comes with 2 pack clamps, providing more than 2000 pounds of clamping force on your workpieces. Multifunctional Clamp: This clamp can be used in two ways - clamp or spreader. The sliding head can be reversed on the bar and the clamp acts as a spreader, meeting your multiple needs on various workpieces.Premium Design: The ergonomic soft grip handle is threaded, making it non-slip and comfortable. Lift the handle and slide smoothly, which is more labor-saving, preventing your workpieces from slipping out of place during the bonding and fixing. Application: This bar clamp set is suitable for all kinds of woodworking, such as panel gluing, drawers, cabinets, frames or any other items that require strong pressure to be applied vertically or evenly.