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Chip ejection port design allows the sprocket to be mounted from either side
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Oregon .404" pitch drive sprockets are designed to work with 18HX, and 19HX harvester chain, but they will fit any .404 pitch chain
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Sprocket teeth slots accept both .063 (1.6mm) and .080 (2.0mm) gauge chain
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Bore: 7/8" (22.55mm) for Splined Shaft
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All harvester chain is intended for use on mechanized harvesting equipment only and should never be used on hand-held chainsaws