4" Palmgren cradle style angle vise is the quickest way to set your work between 0? and 90?. Jaw Width: 4" Jaw Depth: 1-1/2" Jaw Opening: 4" Base Size: 7-3/8" x 7-9/16"Made from FC25, fine grain cast iron; Trapezoidal-thread lead screwLess than 0.002" jaw deflection at 2,000 lbs. clamping pressure; Jaw surfaces square to 0.002"Solid iron construction with stress-relieved design; Replaceable jaw platesPin stops every 15? for quick angle set-ups. Heavy steel cam locking mechanism for securing vise at any angle; Scale indexed in 1? increments from 0? to 90?Fixed jaw is grooved horizontally and vertically for holding round stock