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Old 02-01-2013, 01:51 PM   #39
Join Date: Jan 2012
Posts: 584

The depth caliper is the only one with perfect accuracy. The digital caliper is not as reliable as I'd hoped, as the prongs can get stuck in a groove in the tread pattern. I will list my measuring methods and results.:

Gel Game 3
Bar Clamp method - 3.15 cm
Depth Caliper - 2.95 cm
Paper - 3 cm
Digital Outside Caliper - 3.25 cm

Last edited by newyorkstadium; 02-07-2014 at 12:04 PM.
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