SF 7900™ Ceramic Shield for Welding, 9.5 oz Aerosol Can, White ORS NASCO Jam proof mechanism Retractable striking surface to Jam proof mechanism Retractable striking surface to prevent damage High carbon hardened steel working parts for"creased durability Outstanding performance for any cutting operation on any metal Absolutely without equal on hard metals and on cuts requiring extreme pressure or long cutting times Metal cutting fluid used to increase speed silicone free ceramic protective coating that prevents metal spatter from adhering to welding equipment Coating forms a dry film that repels spatter and ensures uninterrupted welding for up to 8 hours without the need for re application Suitable for manual MIG MAG welding and fittings Known as AERODAG CERAMISHIELD