Drill of hexagonal cylinder
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United States of America Patent
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N/A
Issued Date -
Dec 24, 2009
app pub date -
Jan 27, 2006
filing date -
Aug 23, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention relates to a drill of hexagonal cylinder. In a drill of diameter range 5 mm to 13 mm as using to make a hole on a metal, wood, or etc., a drill edge part in which is located at the bottom of the drill as formed a shape of screw to be able to make a hole the metal or wood, and a bit part in which is located at the top of the drill edge part as formed a shape of the teeth of a comb in the surface of a hexagonal cylinder to be able to separate and combine the drill in a drill tight.
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