Features Durable to Use: Made of Stainless Steel, which is durable and will not damage the surface of the workpiece to meet your needs Applicable: The bench dogs can be adjusted by the screw, which is suitable for various table and has a wide range of applicability Esay Operation: Having a humanized design, with simple operation, stable and safe characteristics, you can use the bench dogs with confidence Aperture of 20mm/0.8in: Has a wide range of compatibility and is suitable for use on woodworking tables with an aperture of 20mm/0.8in Fixing Function: Mainly used for woodworking positioning and fixing, which can give you a good experience Specification: Item Type: Desk Vice Material: Stainless Steel Tenon Diameter: Approx. 20mm/0.8in Thread Specification: M12 Wrench Specification:Approx. 8mm/0.3in Applicable Scene: Suitable for Use on Woodworking Table with 20mm/0.79in Aperture Uses: Used for Woodworking Positioning and Fixing Package List:1 x Desk Vice  1 x Wrench Package List 1 x Desk Vice 1 x Wrench