Lincoln Service Parts 2 › Lincoln Electric 9SS31973 CALIBRATION POST, 0.37" S31973 Lincoln Electric 9SS31973 CALIBRATION POST, 0.37" S31973 Sale Price: $79.57 Original Price: $91.51 CALIBRATION POST, 0.37" PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! CALIBRATION POST, 0.37" PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1