ALL CUTTERS ARE- * Made from Ultrafine grain carbide EMT 612 of Extramet - Switzerland * Are TiAIN + coated specially in The Netherlands, BV. CrCN and Diamond Coated also available ( TiAIN + Coating is not done in India). * Benchmarked for quality against the leaders in Japan. * Manufactured to shank tolerance h5 as compared to h6 of others * Proven on yasda (48,000rpm), Rodders (40,000 rpm) * Tested at University of Holland for conformation to Benchmark.