Title:
SPADE DRILL INSERT HAVING HELICAL MARGINS
Document Type and Number:
WIPO Patent Application WO2005046913
Kind Code:
B1
Abstract:
A spade drill insert and drilling tool assembly is provided wherein the lands of the spade drill insert have helical margins which provide increased stability during cutting operations. The margin may have a helical trailing side or leading side, a parallel helical margin, or may also include a gullet or flute adjacent the helical margin.
Inventors:
STOKEY TIMOTHY G (US)
FIEGL GREG (US)
NUZZI JOSEPH P (US)
MAST WENDELL E (US)
FIEGL GREG (US)
NUZZI JOSEPH P (US)
MAST WENDELL E (US)
Application Number:
PCT/US2004/037022
Publication Date:
November 17, 2005
Filing Date:
November 05, 2004
Export Citation:
Assignee:
ALLIED MACHINE & ENG CORP (US)
STOKEY TIMOTHY G (US)
FIEGL GREG (US)
NUZZI JOSEPH P (US)
MAST WENDELL E (US)
STOKEY TIMOTHY G (US)
FIEGL GREG (US)
NUZZI JOSEPH P (US)
MAST WENDELL E (US)
International Classes:
B23B51/00; B23D77/00; B27G15/00; B23B; (IPC1-7): B23B51/00; B23D77/00; B27G15/00
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