Lincoln K and KP Numbers › Lincoln Electric K4522-3-FM-45 MAGNUM� PRO 500WC FAST MATE, 20 FT. Lincoln Electric K4522-3-FM-45 MAGNUM� PRO 500WC FAST MATE, 20 FT. Sale Price: $1,785.50 Original Price: $1,999.76 MAGNUM� PRO 500WC FAST MATE, 20 FT. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM� PRO 500WC FAST MATE, 20 FT. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000