Lincoln K and KP Numbers › Lincoln Electric KP2745-18-B100 CONTACT TIP 550, 1/8 Lincoln Electric KP2745-18-B100 CONTACT TIP 550, 1/8 Sale Price: $378.57 Original Price: $424.00 CONTACT TIP 550, 1/8 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 100.000 Add To Cart Added! CONTACT TIP 550, 1/8 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 100.000