Lincoln Service Parts 2 › Lincoln Electric 9SS31972 CALIBRATION POST, 0.25" S31972 Lincoln Electric 9SS31972 CALIBRATION POST, 0.25" S31972 Sale Price: $87.53 Original Price: $100.66 CALIBRATION POST, 0.25" PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! CALIBRATION POST, 0.25" PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1