Lincoln K and KP Numbers › Lincoln Electric KP1976-2 GUIDE TUBE EXTENSION END, 3/16 Lincoln Electric KP1976-2 GUIDE TUBE EXTENSION END, 3/16 Sale Price: $70.10 Original Price: $78.51 GUIDE TUBE EXTENSION END, 3/16 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GUIDE TUBE EXTENSION END, 3/16 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000