Perforating drill

Details Perforating drill Perforating drill

2007-01-16

2007-01-16

Carter, Monica (Department: 3722)

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

C175S323000, C175S394000

Reexamination Certificate

active

10275370

ABSTRACT:
The invention concerns a drill including a generally cylindrical body, tipped with a head and provided, over at least part of its length, generally spiral evaporating grooves. The groove(s) are delimited, over at least part of their length, by a succession of facets, attached to one another, and linked to one another by sharp edges or by radius blends.

REFERENCES:
patent: 2322894 (1943-06-01), Stevens
patent: 5509761 (1996-04-01), Grossman et al.
patent: 5921728 (1999-07-01), Kammeraad et al.
patent: 2003/0019667 (2003-01-01), Peetz
patent: 20 13 327 (1971-05-01), None
patent: 38 26 239 (1990-02-01), None
International Search Report PCT/FR01/01288; Aug. 28, 2001.

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