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Old 2018-03-09, 9:28am
kansassky kansassky is offline
Dix Harrison
 
Join Date: Mar 31, 2009
Location: KCKS - But my heart is in Scotland
Posts: 507
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Wait.
Double the thickness of the mandrel?
Maybe that applies for a regular boro bead wrapped on a mandrel.

However, I think that is way too thick for a hollow, BLOWN boro bead.
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