Lincoln K and KP Numbers › Lincoln Electric K4531-2-FM-040H MAGNUM PRO CURVE HDE 15�, FM,.040 HF STT Lincoln Electric K4531-2-FM-040H MAGNUM PRO CURVE HDE 15�, FM,.040 HF STT Sale Price: $725.92 Original Price: $813.03 MAGNUM PRO CURVE HDE 15�, FM,.040 HF STT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE HDE 15�, FM,.040 HF STT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000