Portable Vise, Duty Rating - Vises Standard Duty, Jaw Width - Vises 4 in, Max. Opening - Vises 2 1/4 in, Throat Depth - Vises 2 in, Deep Throat No, Base Type - Vises Clamp-On Swivel, Pipe Jaw Included Yes, Reversible No, High-Visibility No, Swivel Angle - Vises 45 Degrees , Jaw Face - Vises Serrated, Quick-Acting No, Material -Vises Ductile Iron, Jaw Type Replaceable