Features 20mm Bench Dog: This table hole stop is perfect for 20mm (0.79 inch) hole, ensuring tight clamping without the need to remove out or use a knob to secure the clamp, fast and convenient. Aluminum Alloy: The woodworking hole table stop is made of excellent aluminum alloy with anodized finish, has high strength, oxidation resistance, erosion resistance, and long service life. Secure Clamping: This aluminum alloy table stop can provide a firm clamping force in the rail, applying clamping pressure to any position along the T shaped slot or T shaped rail that is installed flush. Compact Design: These woodworking table hole stops have a compact size and lightweight design, which will not affect woodworking projects and are convenient for use anytime, anywhere. 2 Pcs in 1 Set: This kit includes 2 pieces aluminum alloy table stops for easy use and replacement. With fine processing, these table stops have non slip finish, making them convenient and practical. Specification: Item Type: Woodworking Hole Table Stop Material: Aluminum Alloy Specification: Approx. 20mm / 0.79in PackageList: 2 x Woodworking Table Stops Package List 2 x Woodworking Table Stops