3028773

Information

• Patent Grant
• 3028773

• References
• Source

• Patent Number

  3,028,773

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1962
  63 years ago

• CPC

  • B23B51/02 - Twist drills
  • B23B2251/18 - Configuration of the drill point
  • B23B2251/46 - Drills having a centre free from cutting edges or with recessed cutting edges
  • Y10T408/89 - Tool or Tool with support
  • Y10T408/899 - Having inversely angled cutting edge
  • Y10T408/905 - Having stepped cutting edges

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool