1.1/2" - 38mmToolmakers Screwless Vise; Made of 20CrMnTi Steel. Jaw Width: 1.1/2"" ; Jaw Opening: 3" ; Jaw Depth: 1". Jaw can be Opened and Closed without Unbolting vise from Work Surface. Tolerance within .0002" of parallelism ; Angular center channel provides extra jaw capacity. Quantity: 1 ; Unit overall dimension: 148mm X 38mm. Made in India.