Set Of 4 T-clamps For 3018-pro / 3018-mx3 / 3018-prover Cnc Milling And Engraving Machine Jiujiuso The product is shipped based on the color or size of the main image of the product page. Material: Clamp is made of zinc aluminum alloy for long life and high wear resistance. Dimensions: Slbrille bracket measures 50mm (L) x 20mm (W) x 56mm (H). Design: The collet slot block size is designed for 3018 series CNC milling machines. It fits perfectly with the 3018 series desktop CNC milling machines. Features: The clamp supports materials up to a thickness of almost 30 mm. It can hold most materials used for CNC milling machines. Versatility: This clamp provides a unique clamping effect for your universal T-slot system setups and components. It is ideal for holding, positioning and fixing workpieces in woodworking or metalworking, in combination with routers, drills, CNC milling machines, work tables, vertical milling machines and much more. Details Technical: Material: Zinc Aluminum Alloy. Dimensions: 50mm (L) x 20mm (W) x 56mm (H) (assembled). Contents: 4 T-slot clamps.