Auger bit with interlocking feed screw and cutting insert

Details Auger bit with interlocking feed screw and cutting insert Auger bit with interlocking feed screw and cutting insert

2008-11-19

2011-11-15

Howell, Daniel (Department: 3726)

Cutting by use of rotating axially moving tool

Tool or tool with support

Having central lead-screw

C408S230000, C408S231000, C408S713000

Reexamination Certificate

active

08057135

ABSTRACT:
An auger bit includes a shaft having a central axis, a cutting insert mounted to said shaft, and a feed screw that is separate from the cutting insert and which is mounted to the shaft. The cutting insert and the feed screw are engaged with each other. A single locking member, such as a set screw, secures the feed screw member to the shaft, and thereby secures the cutting insert to the shaft. If the feed screw or the cutting insert become worn, feed screw or the cutting insert can be replaced.

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patent: 2009/0208300 (2009-08-01), Durfee

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