DE159437C - - Google Patents

Info

Publication number
DE159437C
DE159437C DENDAT159437D DE159437DA DE159437C DE 159437 C DE159437 C DE 159437C DE NDAT159437 D DENDAT159437 D DE NDAT159437D DE 159437D A DE159437D A DE 159437DA DE 159437 C DE159437 C DE 159437C
Authority
DE
Germany
Prior art keywords
groove
drill
cross
spiral
tip
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.)
Active
Application number
DENDAT159437D
Other languages
German (de)
English (en)
Publication of DE159437C publication Critical patent/DE159437C/de
Active 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
    • B23B2251/24—Overall form of drilling tools
    • B23B2251/241—Cross sections of the diameter of the drill
    • B23B2251/245—Variable cross sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/48—Chip breakers
DENDAT159437D Active DE159437C (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR339904T

Publications (1)

Publication Number Publication Date
DE159437C true DE159437C (sv)

Family

ID=8891732

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT159437D Active DE159437C (sv)

Country Status (2)

Country Link
DE (1) DE159437C (sv)
FR (1) FR339904A (sv)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK82463C (da) * 1953-11-09 1956-12-03 Firth Brown Tools Ltd Spiralbor.
DE1017438B (de) * 1951-10-12 1957-10-10 Firth Brown Tools Ltd Spiralbohrer
DE1106144B (de) * 1956-11-22 1961-05-04 Friedrich Boehme Spiralbohrer
DE3545586A1 (de) * 1985-12-21 1987-07-02 Komet Stahlhalter Werkzeug Bohrwerkzeug
EP0332437A2 (en) * 1988-03-11 1989-09-13 HOSOI, Toshiaki Drill
EP0642863A1 (en) * 1993-09-14 1995-03-15 Seco Tools Ab Drill

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131794C2 (de) * 1980-08-29 1986-08-07 Toshiaki Osaka Hosoi Bohrer
CH704706B1 (fr) * 2011-03-18 2015-09-30 Fkg Dentaire S A Instrument endodontique pour l'alésage de canaux radiculaires.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017438B (de) * 1951-10-12 1957-10-10 Firth Brown Tools Ltd Spiralbohrer
DK82463C (da) * 1953-11-09 1956-12-03 Firth Brown Tools Ltd Spiralbor.
DE1106144B (de) * 1956-11-22 1961-05-04 Friedrich Boehme Spiralbohrer
DE3545586A1 (de) * 1985-12-21 1987-07-02 Komet Stahlhalter Werkzeug Bohrwerkzeug
AT393098B (de) * 1985-12-21 1991-08-12 Komet Stahlhalter Werkzeug Bohrwerkzeug
EP0332437A2 (en) * 1988-03-11 1989-09-13 HOSOI, Toshiaki Drill
EP0332437A3 (en) * 1988-03-11 1990-08-08 Toshiaki Hosoi Drill
EP0642863A1 (en) * 1993-09-14 1995-03-15 Seco Tools Ab Drill

Also Published As

Publication number Publication date
FR339904A (fr) 1904-06-22

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