Vise Head Body Material Aluminum Jaw Face Type Smooth Jaw Material Nylon Jaw Face Width 2 1/2 in Jaw Opening - Maximum 2 1/4 in Rotation Angle 360 Degrees Throat Depth 1 3/8 in Pipe Diameter - Maximum 2 in Base Swivel Angle 360 Degrees Compatible with Manufacturer Model Number 300 305 380 Features 1.5 lb Mounting Hole Diameter 5/8 in Number of Mounting Holes 1 Overall Depth 4 3/8 in Overall Length 7 1/2 in Overall Width 3 9/16 in