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Small Bore

The bore of the oboe is considerably smaller than that of the clarinet, especially in the upper joint. It is also conical in shape instead of cylindrical. Because of this small conical bore, the suggestions on care of wood in the clarinet section apply doubly to oboe. The upper joint is more liable to crack because it is so small on the inside and therefore difficult to keep dry. If your oboe does not have a small swab which will go through the upper joint, be sure to obtain one or use a feather or cloth swab on a weighted cord. If you use a draw cord swab, be careful you do not get the swab stuck in the tapered bore. It is absolutely essential that you swab out this upper joint carefully after every practice period or playing engagement, and that you oil the inside bore methodically, especially when the oboe is new.