Palmgren Bench grinder pedestal stand Base and top are made of heavy-duty cast iron Adjustable steel column is 3-1/2" diameter Built-in water pot provides quenching for work piece Unique design allows mounting with 4 bolts Designed to accommodate 6", 7", 8", and 10" bench grinders and bench buffers, and 1", 2" and 4" belt grinders. Jaw width: 4-Inch Jaw opening: 4-Inch Throat dept: 1 3/4-Inch 15-Inch x 16-1/2-Inch base