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Old 9th November 2010, 07:06 AM
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RobF RobF is offline
My Empire of Dirt
Join Date: Mar 2010
Member of: Southampton Buccaneers, Parkstone, South Dorset
Location: Poole, Dorset
Posts: 10,171

Yeh, mines a 30mm tube...

With my march, you need something needle fine because it ranges to that degree consistently... something a mm thick would have me guessing. Also it allows me to run it tight against the wheel, less than a mm off it's surface, so there's no pa error by the needle floating off the surface and giving me a misread...
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