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My view on this is that the bushings should be manufactured on the two OD's the tolerance should be .01+- and the hole should be reamed to 6.23 which is what I have found to be a rough standard size the mandrel rod should have a tolerance of +.00 -.005 these tolerances are 100% achievable and would make ever thing fit nicely if Taiwan say they can not achieve these tolerances then I say bring the manufacturing home again yes ok it might cost a couple of pence more but who cares



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