Pony 4-in Cast Iron Workshop ViseReplaceable hardened steel serrated jaw faces Permanent pipe jaws which allow you to easily hold pipe and large forming horns Large ground and polished anvils 180 Degree swivel base Features Series Name NONE Type Workshop Throat Depth (Inches) 2. 625 Jaw Width Measurement 4 in Maximum Jaw Opening 3 1 2 in Pipe Capacity N A Clamping Force (lbs.) 3307 Material Cast iron Color Finish Family Orange Warranty Limited lifetime CA Residents: Prop 65