SYMMETRICAL BIT FOR DIRECTIONAL DRILLING TOOL
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United States of America Patent
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Issued Date -
Jun 25, 2015
app pub date -
Apr 3, 2013
filing date -
Apr 5, 2012
priority date (Note) -
Abandoned
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Abstract
A percussion drill bit for directional drilling tools. The drill bit comprises a head portion formed with an axially extending shank. The drill bit also comprises engagement means on the shank engageable with complementary engagement means formed on a drive chuck whereby rotational drive from the chuck may be transmitted to the shank. The head portion of the drill bit is formed with a plurality of slant faces arranged symmetrically about the head portion.
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