FR2382965A1 - Foret a pointer - Google Patents

Foret a pointer

Info

Publication number
FR2382965A1
FR2382965A1 FR7708096A FR7708096A FR2382965A1 FR 2382965 A1 FR2382965 A1 FR 2382965A1 FR 7708096 A FR7708096 A FR 7708096A FR 7708096 A FR7708096 A FR 7708096A FR 2382965 A1 FR2382965 A1 FR 2382965A1
Authority
FR
France
Prior art keywords
bit
cutting edges
drill bit
edges
arrisses
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.)
Granted
Application number
FR7708096A
Other languages
English (en)
Other versions
FR2382965B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7708096A priority Critical patent/FR2382965A1/fr
Publication of FR2382965A1 publication Critical patent/FR2382965A1/fr
Application granted granted Critical
Publication of FR2382965B1 publication Critical patent/FR2382965B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

Foret à pointer. Sa pointe comporte deux arêtes tranchantes 5, 6 situées dans un même plan diamétral. La fond 7, 8 de chaque gorge correspondante est décalé de part et d'autre par rapport à un plan diamétral 9 perpendiculaire à celui contenant les arêtes 4, 5 de manière à déterminer une âme mince 12 à deux pentes 10, 11. Pointage avant perçage d'un trou.
FR7708096A 1977-03-11 1977-03-11 Foret a pointer Granted FR2382965A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7708096A FR2382965A1 (fr) 1977-03-11 1977-03-11 Foret a pointer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7708096A FR2382965A1 (fr) 1977-03-11 1977-03-11 Foret a pointer

Publications (2)

Publication Number Publication Date
FR2382965A1 true FR2382965A1 (fr) 1978-10-06
FR2382965B1 FR2382965B1 (fr) 1982-10-22

Family

ID=9188248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7708096A Granted FR2382965A1 (fr) 1977-03-11 1977-03-11 Foret a pointer

Country Status (1)

Country Link
FR (1) FR2382965A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948306A (en) * 1987-08-08 1990-08-14 Aldof Wurth GmbH & Co. KG Drill
US5181811A (en) * 1988-07-04 1993-01-26 Toshiaki Hosoi Drill and drill grinding method and apparatus
EP0608084A1 (fr) * 1993-01-19 1994-07-27 Emhart Inc. Trépan de forage de type foret hélicoidal
EP0936014A1 (fr) * 1998-01-20 1999-08-18 Pagnon, José Auguste Fernand Outil de coupe, notamment foret, à géoméetrie améliorée

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR507822A (fr) * 1919-03-12 1920-09-24 Hippolyte Caillon Foret à arete coupant jusqu'au centre du trou
US2576664A (en) * 1949-12-02 1951-11-27 Gen Electric Twist drill
FR1118255A (fr) * 1955-01-26 1956-06-04 Foret pour marbre, granit, faïence, fonte et autres matériaux
GB788745A (en) * 1955-05-18 1958-01-08 Ronald Fredrick Cox Improved twist drill
DE2050987A1 (de) * 1969-10-20 1971-05-06 Osborn Mushet Tools Ltd Spiralbohrer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR507822A (fr) * 1919-03-12 1920-09-24 Hippolyte Caillon Foret à arete coupant jusqu'au centre du trou
US2576664A (en) * 1949-12-02 1951-11-27 Gen Electric Twist drill
FR1118255A (fr) * 1955-01-26 1956-06-04 Foret pour marbre, granit, faïence, fonte et autres matériaux
GB788745A (en) * 1955-05-18 1958-01-08 Ronald Fredrick Cox Improved twist drill
DE2050987A1 (de) * 1969-10-20 1971-05-06 Osborn Mushet Tools Ltd Spiralbohrer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948306A (en) * 1987-08-08 1990-08-14 Aldof Wurth GmbH & Co. KG Drill
US5181811A (en) * 1988-07-04 1993-01-26 Toshiaki Hosoi Drill and drill grinding method and apparatus
EP0608084A1 (fr) * 1993-01-19 1994-07-27 Emhart Inc. Trépan de forage de type foret hélicoidal
EP0936014A1 (fr) * 1998-01-20 1999-08-18 Pagnon, José Auguste Fernand Outil de coupe, notamment foret, à géoméetrie améliorée

Also Published As

Publication number Publication date
FR2382965B1 (fr) 1982-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse