Lincoln Service Parts 1 › Lincoln Electric 9SS12547 ADJUSTING KNOB S12547 Lincoln Electric 9SS12547 ADJUSTING KNOB S12547 Sale Price: $67.61 Original Price: $77.75 ADJUSTING KNOB PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! ADJUSTING KNOB PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1