FR1352808A - Twist Drill Improvements - Google Patents

Twist Drill Improvements

Info

Publication number
FR1352808A
FR1352808A FR859506A FR859506A FR1352808A FR 1352808 A FR1352808 A FR 1352808A FR 859506 A FR859506 A FR 859506A FR 859506 A FR859506 A FR 859506A FR 1352808 A FR1352808 A FR 1352808A
Authority
FR
France
Prior art keywords
twist drill
twist
drill
drill improvements
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR859506A
Other languages
French (fr)
Inventor
Michel Mercier
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 filed Critical
Priority to FR859506A priority Critical patent/FR1352808A/en
Application granted granted Critical
Publication of FR1352808A publication Critical patent/FR1352808A/en
Expired legal-status Critical Current

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
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/18—Configuration of the drill point
    • 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)
FR859506A 1961-04-21 1961-04-21 Twist Drill Improvements Expired FR1352808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR859506A FR1352808A (en) 1961-04-21 1961-04-21 Twist Drill Improvements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR859506A FR1352808A (en) 1961-04-21 1961-04-21 Twist Drill Improvements

Publications (1)

Publication Number Publication Date
FR1352808A true FR1352808A (en) 1964-02-21

Family

ID=8753584

Family Applications (1)

Application Number Title Priority Date Filing Date
FR859506A Expired FR1352808A (en) 1961-04-21 1961-04-21 Twist Drill Improvements

Country Status (1)

Country Link
FR (1) FR1352808A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410526A1 (en) * 1977-12-03 1979-06-29 Hosoi Ryosuke FOREST IMPROVEMENTS
US4561813A (en) * 1983-06-06 1985-12-31 M. A. Ford Mfg. Co., Inc. Drill
US4759667A (en) * 1985-11-08 1988-07-26 American Telephone And Telegraph Company, At&T Technologies, Inc. Twist drill for drilling printed circuit board laminates and having an drill point geometry
US20170209942A1 (en) * 2016-01-22 2017-07-27 Tct Global Limited Drill structure
US20180056403A1 (en) * 2015-03-18 2018-03-01 Mitsubishi Materials Corporation Drill
US20190134719A1 (en) * 2017-11-03 2019-05-09 Tct Global Limited Drill structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410526A1 (en) * 1977-12-03 1979-06-29 Hosoi Ryosuke FOREST IMPROVEMENTS
US4561813A (en) * 1983-06-06 1985-12-31 M. A. Ford Mfg. Co., Inc. Drill
US4759667A (en) * 1985-11-08 1988-07-26 American Telephone And Telegraph Company, At&T Technologies, Inc. Twist drill for drilling printed circuit board laminates and having an drill point geometry
US20180056403A1 (en) * 2015-03-18 2018-03-01 Mitsubishi Materials Corporation Drill
US20170209942A1 (en) * 2016-01-22 2017-07-27 Tct Global Limited Drill structure
US10596641B2 (en) * 2016-01-22 2020-03-24 Tct Global Limited Drill structure
US20190134719A1 (en) * 2017-11-03 2019-05-09 Tct Global Limited Drill structure

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