Features: Elevates your woodworking precisions with our quick acting hold down clamp, a must having tool for seamlesses and secure workpiece anchoring on your workbench. Crafted from aluminum, this clamp features easy to operate manual press that ensures marring the wood surfaces, suitable for both 19mm and 20mm dog holes. For diyer enthusiasts and professional carpentery alike, this clamp is designing to streamlines projects and enhances the efficiency of your woodworking tasks. Whether you're crafting in your home workshop or on a professional job sites, this woodworking clamp is the for any project requiring stable and hold down assistance. With its robusts constructions and compatibility with standard workbench holes, this woodworking dog clamp is not just a tool but investment in the quality and accuracy of your woodcrafts. Specifications: Component:Aluminium Diameter:Approx.19mm/20mm Holes Package Includes: 2pcs Woodworking Clamps note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. ②.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.