Made of tough cast iron, this bench vise has replaceable forged steel jaws to grip and keep your workpiece steady. Equipped with a locking swivel base to help you get the best angle on your work. The large anvil is perfect for shaping and fabrication work. Available in 3 different weights to match your job and budget.5KG, 6.8KG, and 11KG (Approx) 4" 11KG: Jaw opening: 4 in. Base dimensions: 4-15/16 in. diameter Jaw Width (in.): 4 in. Product Height: 5-1/5 in. Product Length: 9-1/5 in. Product Width: 4 in. Throat depth (in.): 2 in. 4" 5KG: Jaw opening: 4 in. Base dimensions: 4-15/16 in. diameter Jaw Width (in.): 4 in. Product Height: 5-1/5 in. Product Length: 9-1/5 in. Product Width: 4 in. Throat depth (in.): 2 in. 4" 6.8KG: Jaw opening: 4 in Base dimensions: 4-15/16 in. diameter Jaw Width (in.): 4 in. Product Height: 5-1/5 in. Product Length: 9-1/5 in. Product Width: 4 in. Throat depth (in.): 2 in. Constructed of rugged cast ironReplaceable hardened forged steel jaws360 deg. swivel base locks in placeAnvil with large work surface