Lincoln K and KP Numbers › Lincoln Electric K1784-4 MAGNUM PTW-20 TIG TORCH (25FT 3PC) Lincoln Electric K1784-4 MAGNUM PTW-20 TIG TORCH (25FT 3PC) Sale Price: $364.32 Original Price: $408.04 MAGNUM PTW-20 TIG TORCH (25FT 3PC) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PTW-20 TIG TORCH (25FT 3PC) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000