This 50mm Table Vise Has An Anvil And 360 Degree Locking Swivel Base; It's Made Of Rugged Die Cast Iron - Great For All Sorts Of Do-it-yourself Projects., ideal for Woodworking.Pipe Capacity :2"* Hooks On To Your Workshop Table Or Work Bench * Has An Anvil For Reshaping Or Flattening Metal * Base Can Swivel Or Be Locked In Place *Jaw Measures 50mm X 6mm *Max Jaw Opening Capacity : 2.25"