Lincoln K and KP Numbers › Lincoln Electric KP4721-040 TUNGSTEN - 2% LANTHANATED, .040" Lincoln Electric KP4721-040 TUNGSTEN - 2% LANTHANATED, .040" Sale Price: $24.20 Original Price: $27.10 TUNGSTEN - 2% LANTHANATED, .040" PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 10.000 Add To Cart Added! TUNGSTEN - 2% LANTHANATED, .040" PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 10.000