Cowles-style dispersion blade with 1" or 1.25” dia. bore and with setscrewed hub, SS316. The HSD800 disperser blade is commonly used in the paint, ink, chemical, plastic and adhesive industries. The "Cowles" high shear disc impeller creates high shear to prevent clumping, wet out powders, reduce particle size and emulsify. Best when operating at high speed. It is normally used in the viscosity range of 1,000 - 25,000 cps, with a maximum of 50,000 cps. Ships in 1 - 2 weeks.