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robinson racing purple pinions

robinson racing purple pinions

Old 10-01-2004, 06:36 AM
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Can anyone please tell me what size allen key fits in the grub screws that come with these pinions? None of the ones I have (metric and imperial) fit they are all just too small
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Old 10-01-2004, 06:38 AM
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so get a smaller one. They are way small. The allen key will strip out fairly easily, so go to your LHS and get a quality wrench with that tip on it.
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Old 10-01-2004, 06:43 AM
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I have sets of allen keys and they are too small and too big

Where I live there is no decent LHS that has anything, and no hardware stores keep hex drivers suitable, so I need to order one from Tower or somewhere, hence the fact that i need to know what size to order.

I want to get a nice driver but dont know what size, im not playing hex driver roulette and hoping i order one the right size! not at the prices they charge for the things!
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Old 10-01-2004, 06:53 AM
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If the set screw is the same as the regular Robinson pinions, then it is a 5-40 screw with a 1/16" hex.
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Old 10-01-2004, 06:56 AM
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1/16
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Old 10-01-2004, 06:57 AM
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Thanks brianrice and Tres

will hunt a 1/16 driver down
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