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Re: Undercutter blades for vintage Tru-Cut armature lathe
Posted to Tool & Equipment Forum on 11/19/2021 2 Replies

Right Louie, starting mid 60's or so most starter armatures began using a plastic material between the commutator bars, and that does not need to be undercut as it wears down at the same rate as the copper. But pretty much all generators used a mica type mater... Login to read more.

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