TURBO-SHARP X is an encased electrode grinder, which dramatically reduces dangerous radioactive (2% Thoriated) grinding dust exposure to both the customer and the atmosphere. Correctly ground electrodes enhance arc beginning and security, minimize tungsten losing, enhance electrode life and improve welding consistency.New enhanced TURBO-SHARP X showcases adjustable head! - Grinding Discs Last 3 x LONGER!! 3 placement adjustmentEach placement enables grinding on a different area of the grinding discTriples the life time of grinding disc