Bracing coil

The bracing coil was a part of the Eleventh Doctor's sonic screwdriver, located underneath the easy-grip handle, below the section of the sonic which had the thermal insulation casing, and above the cooling cells and the charging cells. (PROSE: )
== History ==
:: See Eleventh Doctor's sonic screwdriver for general information about the screwdriver.
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== Behind the scenes ==
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Category:Sonic screwdriver technology