Lincoln Service Parts 2 › Lincoln Electric 9SS15928 ADJUSTING KNOB S15928 Lincoln Electric 9SS15928 ADJUSTING KNOB S15928 Sale Price: $126.38 Original Price: $145.34 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