3645640

Information

• Patent Grant
• 3645640

• References
• Source

• Patent Number

  3,645,640

• Date Filed

  Not available

• Date Issued

  Tuesday, February 29, 1972
  53 years ago

• CPC

  • B23B51/009 - Stepped drills
  • B23B5/16 - for bevelling, chamfering, or deburring the ends of bars or tubes
  • B23B5/167 - Tools for chamfering the ends of bars or tubes
  • B23B2251/50 - Drilling tools comprising cutting inserts
  • Y10T408/5584 - Engaging surface axially advanced of tool-action
  • Y10T408/8729 - with work-engaging structure other than cutting edge
  • Y10T408/9065 - with central lead

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool