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Class Information
Number: 408/212
Name: Cutting by use of rotating axially moving tool > Tool or tool with support > Having inversely angled cutting edge > And axially extending peripheral cutting spur
Description: Device having an additional cutting edge extending axially at the radially outermost extremity of the leading portion of the tool, which cutting edge projects axially beyond the other cutting edges of the tool.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7264427 |
Drill bit apparatus |
Sep. 4, 2007 |
| 6024520 |
Auger drill bit |
Feb. 15, 2000 |
| 5649796 |
Carbide spade-type drill bit |
Jul. 22, 1997 |
| 5632747 |
Bone dowel cutter |
May. 27, 1997 |
| 5312207 |
Cylindrical bit |
May. 17, 1994 |
| 5221166 |
Spade-type drill bit apparatus and method |
Jun. 22, 1993 |
| 5061127 |
Drill bit with concave spurs and having triangular center point with vee grooves |
Oct. 29, 1991 |
| 4950111 |
Drill bit with spurs and having rectangular center spur with concave tip |
Aug. 21, 1990 |
| 4897001 |
De-staking tool and method for removal of head gimbals from head stack assemblies |
Jan. 30, 1990 |
| 4830548 |
Method and apparatus for cutting |
May. 16, 1989 |
| 4753558 |
Installation drill |
Jun. 28, 1988 |
| 4730373 |
Machine tool for multiple surface machining |
Mar. 15, 1988 |
| 4682917 |
Spade bit with fluted shoulders |
Jul. 28, 1987 |
| 4529341 |
Drill bit for Kevlar laminates |
Jul. 16, 1985 |
| 4330229 |
Drill bit |
May. 18, 1982 |
| 4285620 |
Symmetrical spur point drill |
Aug. 25, 1981 |
| 4273117 |
Apparatus for drilling bone |
Jun. 16, 1981 |
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