50 mm Tungsten Carbide Blades, 5 Pack | 4Boats50 mm (2 in) tungsten carbide blades, 5 pack ultra durable scraper blades for removing paint, varnish, putty and glue. 50 mm (2 in) double edged tungsten carbide blades Pack of 5 replacement blades Up to 50 times longer life than standard blades For use on wood and metal surfaces Suitable for use with or without a flame Compatible with ventilated handles and wingnut clamp mechanisms for quick fitting Ideal for professional and DIY scraping tasks;