Mixing Impeller, Pitched Blade, For Use With BDC1850, BDC2002, BDC2010, BDC3030, BDC6015, Shaft Dia. 5/16 in, Shaft Length 16 in, Material Stainless Steel, Blade Dia. 1 in, Includes Blade Fastened to Shaft with Set Screws. Blade Is Removable, Electropolished, Manufacturers Warranty Length 2 yr