From the Manufacturer
Palmgren's 12801 is an incredibly tough vise for tight-clearance applications. Low overall height and four mounting slots provide tool clearance and firm mounting on most machines. Vise has replaceable steel jaw plates. Fixed jaw plate is grooved horizontally and vertically for hold round stock. This vise has a precision ground guide bar for smooth, accurate travel and clamping.
Arbor Press, Force in Tons 2, Force Range (Lbs.) 4000, Swing (In.) 11-7/8, Table Work Surface (In.) 6-5/8 x 7-1/2, Anvil Dia. Work Area (In.) 6-5/8, Range of Slot Widths (In.) 3/4 to 1-13/16, Max. Work Height (In.) 8, Ram Dimensions (In.) 1-1/4 x 1-1/4, Ram Hole Dia. x Depth (In.) 1/2 x 3/4, Height (In.) 15-1/8, Width (In.) 7-1/8, Depth (In.) 16, Base Size (In.) 7-1/8 x 16, Cast Iron Construction