O.D. 2.8 length 7.5 bore 2.05, loose fit 2mm shaft. O.D. 2.8 length 50 bore 2.05, loose fit 2mm shaft. O.D. 2 length 27 holes 1.6, loose with 1.5mm shaft. O.D. 2.5 length 18.5 holes 2.05, loose with 2mm shaft.
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