ZA806974B - Tool - Google Patents

Tool

Info

Publication number
ZA806974B
ZA806974B ZA00806974A ZA806974A ZA806974B ZA 806974 B ZA806974 B ZA 806974B ZA 00806974 A ZA00806974 A ZA 00806974A ZA 806974 A ZA806974 A ZA 806974A ZA 806974 B ZA806974 B ZA 806974B
Authority
ZA
South Africa
Prior art keywords
tool
Prior art date
Application number
ZA00806974A
Inventor
R Doerrenberg
Original Assignee
Rohde & Doerrenberg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rohde & Doerrenberg filed Critical Rohde & Doerrenberg
Publication of ZA806974B publication Critical patent/ZA806974B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2250/00—Compensating adverse effects during turning, boring or drilling
    • B23B2250/12—Cooling and lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/24—Overall form of drilling tools
    • B23B2251/241—Cross sections of the diameter of the drill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
ZA00806974A 1979-11-15 1980-11-11 Tool ZA806974B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792946103 DE2946103A1 (en) 1979-11-15 1979-11-15 Two-part helically fluted drill - has shank formed by bush internally contoured to fit flutes, thus providing driving connection

Publications (1)

Publication Number Publication Date
ZA806974B true ZA806974B (en) 1981-10-28

Family

ID=6086043

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00806974A ZA806974B (en) 1979-11-15 1980-11-11 Tool

Country Status (2)

Country Link
DE (1) DE2946103A1 (en)
ZA (1) ZA806974B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2239240C (en) 1997-05-29 2005-08-09 Rickey J. Thomas Improved self-centering drill bit with pilot tip, and process
DE20205861U1 (en) 2002-04-03 2002-09-19 TBT Tiefbohrtechnik GmbH, 72581 Dettingen Drilling device with a multi-bladed drilling tool, especially deep drilling tool
DE10337203A1 (en) * 2003-08-13 2005-03-31 Kennametal Inc. drilling
EP2502708B1 (en) 2011-03-22 2017-02-01 Black & Decker Inc. Chisels
USD734792S1 (en) 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
US9333564B2 (en) 2013-03-15 2016-05-10 Black & Decker Inc. Drill bit

Also Published As

Publication number Publication date
DE2946103A1 (en) 1981-05-21

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