... models of Carbide Inserts(Tungsten Carbide Inserts):Un-coated and Tin-Coated. We supply various models of Carbide Inserts(Tungsten Carbide Inserts):(1) Turning Insert ... : NUN, SPUN, SNMM, SPMR, TPUR, TNUN, TPUN, TNMA, TPGA, TNMG, TNMM ... EPCN(3) Carbide Cutting Tools: Brazed tips and Indexable inserts. Carbide Inserts