US PATENT SUBCLASS 407 / 18
.~ Plural tooth groups
Current as of: June, 1999
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DEFINITION
Classification: 407/18
Plural tooth groups:
(under subclass 13) Device including a first plurality of cutting protuberances for engaging the work in a first manner and including a second plurality of cutting protuberances for sequentially engaging the work in a second manner.
(1) Note. Included herein is a broach including "roughing teeth" and "finishing teeth", as well as a broach with teeth for cutting progressively deeper into work followed by teeth for cutting a progressively wider groove.
