Feature: 1. Sturdy and Reliable: Made from high-quality chrome vanadium alloy steel and zinc alloy, this clamp is strong, reliable, and has a high load-bearing capacity. Its one-piece forged construction ensures stability and prevents bending or breaking. 2. Versatile Column Options: The clamp comes with a variety of different-sized columns for option to accommodate various hole diameters. This ensures a secure and stable grip that won\u0027t slip or detach from the holes. 3. Adjustable Clamping Ranges: The clamping ranges can be adjusted based on the thickness of the wood. It has a maximum clamping distance of 160mm. The tail end of the rod is equipped with an anti-fallout design for added safety. 4. Alloy Pressure Foot: The clamp features an alloy pressure foot with a semi-active design, allowing for multi-angle clamping and a wide clamping ranges. The addition of plastics soft pads prevents damage to the surface of the material being clamped. 5. Easy to Use: Simply insert the clamp into the dog hole of your workbench, clamp the wood, and secure the ratchet for a strong and secure grip. Its user-friendly design reduces hand fatigue and makes woodworking tasks more efficient. Specification: Specifications: Material: Chrome Alloy Steel and Zinc Alloy Clamping Ranges: 0-160mm Base Diameter: 16mm Package Size: 230 * 125 * 50mm/ 9.1 * 4.9 * 2.0in Package Weight: 500g/ 17.6oz . Package List: 1 * Hold Down Clamp