Oregon® Pro-Am PRO 91 Guide Bars 16” are bars for the semi-pro and occasional woodcutters using small to mid-size saws with 3/8” chains. These 16” in length, Pro-Am PRO 91 bars have a sprocket nose and slim-symmetrical contour that is light in weight, maneuverable, and reversible for long life. PRO 91 bars have a nose for 3/8” low profile chain and are available in a variety of lengths, gauges, bar mounts and more. Recommended saw sizes: Up to 3.5 cu in (57). Pro-Am PRO 91 bar feature choices include: Lubri-Dam® - an oil-retaining feature that increases oiling efficiency while reducing oil-hole plugging. Lubri-Dam oiling features may not be a standard feature on certain bars depending on the date of manufacture of bar type.