Oregon R55 AdvanceCut 16-Inch Chainsaw Chain, Fits Stihl 16-in chain, 3/8-in Low Profile pitch, .043-in gauge, 55 drive link length LubriTec keeps your chain and guide bar oiled for less friction and longer life Top-Plate Filing Indicators make accurate sharpening easier For saw sizes up to 42 cc Always use Micro-Lite narrow kerf chain in combination with Micro-Lite bars