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Class Information
Number: 76/108.6
Name: Metal tools and implements, making > Blank or process > Drill > Twist drill
Description: Invention comprising stock material for, or a method of, making a drill having a solid center and a helically spiralled marginal extent revolved thereabout, and having a radially extending web that continuously connect the solid center and the helically spiraled marginal extent.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7625521 |
Bonding of cutters in drill bits |
Dec. 1, 2009 |
| 7516686 |
Two-flute twist drill |
Apr. 14, 2009 |
| 7371344 |
Method and apparatus for manufacturing a blank for a rotary cutting tool |
May. 13, 2008 |
| RE40297 |
Two-piece rotary metal-cutting tool and method for interconnecting the pieces |
May. 6, 2008 |
| 7340978 |
Method and apparatus for making a rotary tool for chip removing machining |
Mar. 11, 2008 |
| 7296497 |
Method and device for manufacturing a drill blank or a mill blank |
Nov. 20, 2007 |
| 7270504 |
Cutting tool for metal working as well as method in the production of cutting tools |
Sep. 18, 2007 |
| 7140815 |
Drill for making flat bottom hole |
Nov. 28, 2006 |
| 6923602 |
Drill having construction for reducing thrust load in drilling operation, and method of manufacturing the drill |
Aug. 2, 2005 |
| 6887125 |
Polishing apparatus, polishing method, control program for causing computer to execute polishing, and recording medium |
May. 3, 2005 |
| 6874978 |
Boring bit and methods for manufacturing boring bits |
Apr. 5, 2005 |
| 6860172 |
Method for making a powdered metal compact |
Mar. 1, 2005 |
| 6694847 |
Cutting tip and method thereof |
Feb. 24, 2004 |
| 6688817 |
Drill for drilling, a method for making a drill for drilling, and a cutting tool |
Feb. 10, 2004 |
| 6676500 |
Drill bit sharpener |
Jan. 13, 2004 |
| 6669414 |
Method and a device for manufacturing a tool and a tool made by the method |
Dec. 30, 2003 |
| 6588994 |
Drill bit tail |
Jul. 8, 2003 |
| 6585460 |
Drill having machine grindable cutting edge |
Jul. 1, 2003 |
| 6575674 |
Reaming tool and process for its production |
Jun. 10, 2003 |
| 6572311 |
Two-piece drill bits |
Jun. 3, 2003 |
| 6540452 |
Drilling tool for machine tools and method for the production thereof |
Apr. 1, 2003 |
| 6450739 |
Tool for chip removing machining and methods and apparatus for making the tool |
Sep. 17, 2002 |
| 6427555 |
Method of making drill-chuck jaw with hard-metal inserts |
Aug. 6, 2002 |
| 6371702 |
Spade blade drill and method of making |
Apr. 16, 2002 |
| 6367567 |
Lockable drill steel and chuck assembly |
Apr. 9, 2002 |
| 6200076 |
Cutting tool and method for producing the same |
Mar. 13, 2001 |
| 6190097 |
Self-centering drill bit with pilot tip, and process |
Feb. 20, 2001 |
| 6132148 |
Machining tool and method for forming same |
Oct. 17, 2000 |
| 6105467 |
Method for preparing a cutting edge on an end mill |
Aug. 22, 2000 |
| 6058807 |
Cutting tool and method for producing the same |
May. 9, 2000 |
| 6050754 |
Self-centering drill bit with pilot tip, and process |
Apr. 18, 2000 |
| 6029544 |
Sintered diamond drill bits and method of making |
Feb. 29, 2000 |
| 6030157 |
Composite drill bit using adhesive bond |
Feb. 29, 2000 |
| 5988953 |
Two-piece rotary metal-cutting tool and method for interconnecting the pieces |
Nov. 23, 1999 |
| 5979912 |
Heavy-metal shrink fit cutting tool mount |
Nov. 9, 1999 |
| 5975813 |
Single flute drill and method of construction |
Nov. 2, 1999 |
| 5971673 |
Two-piece rotary metal-cutting tool and method for interconnecting the pieces |
Oct. 26, 1999 |
| 5927912 |
Composite drill bit using adhesive bond |
Jul. 27, 1999 |
| 5906537 |
Five spindle fluting machine |
May. 25, 1999 |
| 5904939 |
Extruder for extrusion manufacturing |
May. 18, 1999 |
| 5865574 |
Drill with coolant channels and method for its manufacture |
Feb. 2, 1999 |
| 5782145 |
Process for the fabrication of a multi-blade tool |
Jul. 21, 1998 |
| 5780063 |
Apparatus for producing a hard metal or ceramic rod having helical bores |
Jul. 14, 1998 |
| 5762538 |
Method and apparatus for honing an elongate rotary tool |
Jun. 9, 1998 |
| 5746095 |
Method of forming rotary drilling tools |
May. 5, 1998 |
| 5716170 |
Diamond coated cutting member and method of making the same |
Feb. 10, 1998 |
| 5709587 |
Method and apparatus for honing an elongate rotary tool |
Jan. 20, 1998 |
| 5690003 |
Method of forming a drill bit with debris conveying flute |
Nov. 25, 1997 |
| 5676499 |
Drill with coolant channels and method for its manufacture |
Oct. 14, 1997 |
| 5634747 |
Spiral drill with coolant channels and method to manufacture a spiral drill |
Jun. 3, 1997 |
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