Cutting insert for drilling and drill
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 10, 2001
Grant Date -
N/A
app pub date -
Apr 5, 1999
filing date -
Aug 23, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention concerns a cutting insert (10) for drilling. Said cutting insert (10) has a substantially rhomboid basic shape and its four cutting edges (20, 30), which each form cutting corners (15, 16), are broken, two first opposite cutting edges (20) each having cutting edge sections (21, 22) which form an obtuse angle (.epsilon..sub.1) of between 140 and <180.degree.. The two second opposite cutting edges (30) have a constriction, such that two cutting edge sections (31, 32) forming an angle (.epsilon..sub.2) of >180.degree. and 230.degree. are produced. The invention further concerns a drill, wherein at least two of said cutting inserts are disposed on the front face of the shank, each disposed in a recess. The radially outer cutting insert has a concave active cutting edge and the radially inner cutting insert has a convex active cutting edge.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully